diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
deleted file mode 100644
index 8c5bac2a2..000000000
--- a/.github/workflows/unit_tests.yml
+++ /dev/null
@@ -1,56 +0,0 @@
-name: 'Unit tests'
-
-on:
-  pull_request:
-
-env:
-  TARGETS: f7
-  DEFAULT_TARGET: f7
-
-jobs:
-  main:
-    runs-on: [self-hosted, FlipperZeroTest]
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-          ref: ${{ github.event.pull_request.head.sha }}
-
-      - name: 'Get flipper from device manager (mock)'
-        id: device
-        run: |
-          echo "flipper=/dev/ttyACM0" >> $GITHUB_OUTPUT
-
-      - name: 'Compile unit tests firmware'
-        id: compile
-        continue-on-error: true
-        run: |
-          FBT_TOOLCHAIN_PATH=/opt ./fbt flash OPENOCD_ADAPTER_SERIAL=2A0906016415303030303032 FIRMWARE_APP_SET=unit_tests FORCE=1
-
-      - name: 'Wait for flipper to finish updating'
-        id: connect
-        if: steps.compile.outcome == 'success'
-        continue-on-error: true
-        run: |
-          python3 ./scripts/testing/await_flipper.py ${{steps.device.outputs.flipper}}
-
-      - name: 'Format flipper SD card'
-        id: format
-        if: steps.connect.outcome == 'success'
-        continue-on-error: true
-        run: |
-          ./scripts/storage.py -p ${{steps.device.outputs.flipper}} format_ext
-
-      - name: 'Copy unit tests to flipper'
-        id: copy
-        if: steps.format.outcome == 'success'
-        continue-on-error: true
-        run: |
-          ./scripts/storage.py -p ${{steps.device.outputs.flipper}} send assets/unit_tests /ext/unit_tests
-
-      - name: 'Run units and validate results'
-        if: steps.copy.outcome == 'success'
-        continue-on-error: true
-        run: |
-          python3 ./scripts/testing/units.py ${{steps.device.outputs.flipper}}
diff --git a/applications/main/infrared/infrared_cli.c b/applications/main/infrared/infrared_cli.c
index b781db476..7d4c150ef 100644
--- a/applications/main/infrared/infrared_cli.c
+++ b/applications/main/infrared/infrared_cli.c
@@ -5,25 +5,21 @@
 #include <furi_hal_infrared.h>
 #include <flipper_format.h>
 #include <toolbox/args.h>
+#include <m-dict.h>
 
 #include "infrared_signal.h"
 #include "infrared_brute_force.h"
 
-#include <m-dict.h>
-
 #define INFRARED_CLI_BUF_SIZE 10
+#define INFRARED_ASSETS_FOLDER "infrared/assets"
+#define INFRARED_BRUTE_FORCE_DUMMY_INDEX 0
 
 DICT_DEF2(dict_signals, FuriString*, FURI_STRING_OPLIST, int, M_DEFAULT_OPLIST)
 
-enum RemoteTypes { TV = 0, AC = 1 };
-
 static void infrared_cli_start_ir_rx(Cli* cli, FuriString* args);
 static void infrared_cli_start_ir_tx(Cli* cli, FuriString* args);
 static void infrared_cli_process_decode(Cli* cli, FuriString* args);
 static void infrared_cli_process_universal(Cli* cli, FuriString* args);
-static void infrared_cli_list_remote_signals(enum RemoteTypes remote_type);
-static void
-    infrared_cli_brute_force_signals(Cli* cli, enum RemoteTypes remote_type, FuriString* signal);
 
 static const struct {
     const char* cmd;
@@ -87,8 +83,10 @@ static void infrared_cli_print_usage(void) {
         INFRARED_MIN_FREQUENCY,
         INFRARED_MAX_FREQUENCY);
     printf("\tir decode <input_file> [<output_file>]\r\n");
-    printf("\tir universal <tv, ac> <signal name>\r\n");
-    printf("\tir universal list <tv, ac>\r\n");
+    printf("\tir universal <remote_name> <signal_name>\r\n");
+    printf("\tir universal list <remote_name>\r\n");
+    // TODO: Do not hardcode universal remote names
+    printf("\tAvailable universal remotes: tv audio ac\r\n");
 }
 
 static void infrared_cli_start_ir_rx(Cli* cli, FuriString* args) {
@@ -356,89 +354,31 @@ static void infrared_cli_process_decode(Cli* cli, FuriString* args) {
     furi_record_close(RECORD_STORAGE);
 }
 
-static void infrared_cli_process_universal(Cli* cli, FuriString* args) {
-    enum RemoteTypes Remote;
-
-    FuriString* command;
-    FuriString* remote;
-    FuriString* signal;
-    command = furi_string_alloc();
-    remote = furi_string_alloc();
-    signal = furi_string_alloc();
-
-    do {
-        if(!args_read_string_and_trim(args, command)) {
-            infrared_cli_print_usage();
-            break;
-        }
-
-        if(furi_string_cmp_str(command, "list") == 0) {
-            args_read_string_and_trim(args, remote);
-            if(furi_string_cmp_str(remote, "tv") == 0) {
-                Remote = TV;
-            } else if(furi_string_cmp_str(remote, "ac") == 0) {
-                Remote = AC;
-            } else {
-                printf("Invalid remote type.\r\n");
-                break;
-            }
-            infrared_cli_list_remote_signals(Remote);
-            break;
-        }
-
-        if(furi_string_cmp_str(command, "tv") == 0) {
-            Remote = TV;
-        } else if(furi_string_cmp_str(command, "ac") == 0) {
-            Remote = AC;
-        } else {
-            printf("Invalid remote type.\r\n");
-            break;
-        }
-
-        args_read_string_and_trim(args, signal);
-        if(furi_string_empty(signal)) {
-            printf("Must supply a valid signal for type of remote selected.\r\n");
-            break;
-        }
-
-        infrared_cli_brute_force_signals(cli, Remote, signal);
-        break;
-
-    } while(false);
-
-    furi_string_free(command);
-    furi_string_free(remote);
-    furi_string_free(signal);
-}
-
-static void infrared_cli_list_remote_signals(enum RemoteTypes remote_type) {
-    Storage* storage = furi_record_open(RECORD_STORAGE);
-    FlipperFormat* ff = flipper_format_buffered_file_alloc(storage);
-    dict_signals_t signals_dict;
-    FuriString* key;
-    const char* remote_file = NULL;
-    bool success = false;
-    int max = 1;
-
-    switch(remote_type) {
-    case TV:
-        remote_file = EXT_PATH("infrared/assets/tv.ir");
-        break;
-    case AC:
-        remote_file = EXT_PATH("infrared/assets/ac.ir");
-        break;
-    default:
-        break;
+static void infrared_cli_list_remote_signals(FuriString* remote_name) {
+    if(furi_string_empty(remote_name)) {
+        printf("Missing remote name.\r\n");
+        return;
     }
 
-    dict_signals_init(signals_dict);
-    key = furi_string_alloc();
+    Storage* storage = furi_record_open(RECORD_STORAGE);
+    FlipperFormat* ff = flipper_format_buffered_file_alloc(storage);
+    FuriString* remote_path = furi_string_alloc_printf(
+        "%s/%s.ir", EXT_PATH(INFRARED_ASSETS_FOLDER), furi_string_get_cstr(remote_name));
+
+    do {
+        if(!flipper_format_buffered_file_open_existing(ff, furi_string_get_cstr(remote_path))) {
+            printf("Invalid remote name.\r\n");
+            break;
+        }
+
+        dict_signals_t signals_dict;
+        dict_signals_init(signals_dict);
+
+        FuriString* key = furi_string_alloc();
+        FuriString* signal_name = furi_string_alloc();
 
-    success = flipper_format_buffered_file_open_existing(ff, remote_file);
-    if(success) {
-        FuriString* signal_name;
-        signal_name = furi_string_alloc();
         printf("Valid signals:\r\n");
+        int max = 1;
         while(flipper_format_read_string(ff, "name", signal_name)) {
             furi_string_set_str(key, furi_string_get_cstr(signal_name));
             int* v = dict_signals_get(signals_dict, key);
@@ -449,57 +389,57 @@ static void infrared_cli_list_remote_signals(enum RemoteTypes remote_type) {
                 dict_signals_set_at(signals_dict, key, 1);
             }
         }
+
         dict_signals_it_t it;
         for(dict_signals_it(it, signals_dict); !dict_signals_end_p(it); dict_signals_next(it)) {
             const struct dict_signals_pair_s* pair = dict_signals_cref(it);
             printf("\t%s\r\n", furi_string_get_cstr(pair->key));
         }
-        furi_string_free(signal_name);
-    }
 
-    furi_string_free(key);
-    dict_signals_clear(signals_dict);
+        furi_string_free(key);
+        furi_string_free(signal_name);
+        dict_signals_clear(signals_dict);
+
+    } while(false);
+
     flipper_format_free(ff);
+    furi_string_free(remote_path);
     furi_record_close(RECORD_STORAGE);
 }
 
 static void
-    infrared_cli_brute_force_signals(Cli* cli, enum RemoteTypes remote_type, FuriString* signal) {
+    infrared_cli_brute_force_signals(Cli* cli, FuriString* remote_name, FuriString* signal_name) {
     InfraredBruteForce* brute_force = infrared_brute_force_alloc();
-    const char* remote_file = NULL;
-    uint32_t i = 0;
-    bool success = false;
+    FuriString* remote_path = furi_string_alloc_printf(
+        "%s/%s.ir", EXT_PATH(INFRARED_ASSETS_FOLDER), furi_string_get_cstr(remote_name));
 
-    switch(remote_type) {
-    case TV:
-        remote_file = EXT_PATH("infrared/assets/tv.ir");
-        break;
-    case AC:
-        remote_file = EXT_PATH("infrared/assets/ac.ir");
-        break;
-    default:
-        break;
-    }
+    infrared_brute_force_set_db_filename(brute_force, furi_string_get_cstr(remote_path));
+    infrared_brute_force_add_record(
+        brute_force, INFRARED_BRUTE_FORCE_DUMMY_INDEX, furi_string_get_cstr(signal_name));
 
-    infrared_brute_force_set_db_filename(brute_force, remote_file);
-    infrared_brute_force_add_record(brute_force, i++, furi_string_get_cstr(signal));
-
-    success = infrared_brute_force_calculate_messages(brute_force);
-    if(success) {
-        uint32_t record_count;
-        uint32_t index = 0;
-        int records_sent = 0;
-        bool running = false;
-
-        running = infrared_brute_force_start(brute_force, index, &record_count);
-        if(record_count <= 0) {
-            printf("Invalid signal.\n");
-            infrared_brute_force_clear_records(brute_force);
-            return;
+    do {
+        if(furi_string_empty(signal_name)) {
+            printf("Missing signal name.\r\n");
+            break;
+        }
+        if(!infrared_brute_force_calculate_messages(brute_force)) {
+            printf("Invalid remote name.\r\n");
+            break;
         }
 
-        printf("Sending %ld codes to the tv.\r\n", record_count);
+        uint32_t record_count;
+        bool running = infrared_brute_force_start(
+            brute_force, INFRARED_BRUTE_FORCE_DUMMY_INDEX, &record_count);
+
+        if(record_count <= 0) {
+            printf("Invalid signal name.\r\n");
+            break;
+        }
+
+        printf("Sending %ld signal(s)...\r\n", record_count);
         printf("Press Ctrl-C to stop.\r\n");
+
+        int records_sent = 0;
         while(running) {
             running = infrared_brute_force_send_next(brute_force);
 
@@ -510,14 +450,35 @@ static void
         }
 
         infrared_brute_force_stop(brute_force);
-    } else {
-        printf("Invalid signal.\r\n");
-    }
+    } while(false);
 
+    furi_string_free(remote_path);
     infrared_brute_force_clear_records(brute_force);
     infrared_brute_force_free(brute_force);
 }
 
+static void infrared_cli_process_universal(Cli* cli, FuriString* args) {
+    FuriString* arg1 = furi_string_alloc();
+    FuriString* arg2 = furi_string_alloc();
+
+    do {
+        if(!args_read_string_and_trim(args, arg1)) break;
+        if(!args_read_string_and_trim(args, arg2)) break;
+    } while(false);
+
+    if(furi_string_empty(arg1)) {
+        printf("Wrong arguments.\r\n");
+        infrared_cli_print_usage();
+    } else if(furi_string_equal_str(arg1, "list")) {
+        infrared_cli_list_remote_signals(arg2);
+    } else {
+        infrared_cli_brute_force_signals(cli, arg1, arg2);
+    }
+
+    furi_string_free(arg1);
+    furi_string_free(arg2);
+}
+
 static void infrared_cli_start_ir(Cli* cli, FuriString* args, void* context) {
     UNUSED(context);
     if(furi_hal_infrared_is_busy()) {
diff --git a/applications/main/nfc/scenes/nfc_scene_config.h b/applications/main/nfc/scenes/nfc_scene_config.h
index 206bab0cf..afd5b284f 100644
--- a/applications/main/nfc/scenes/nfc_scene_config.h
+++ b/applications/main/nfc/scenes/nfc_scene_config.h
@@ -37,6 +37,12 @@ ADD_SCENE(nfc, mf_classic_keys_list, MfClassicKeysList)
 ADD_SCENE(nfc, mf_classic_keys_delete, MfClassicKeysDelete)
 ADD_SCENE(nfc, mf_classic_keys_warn_duplicate, MfClassicKeysWarnDuplicate)
 ADD_SCENE(nfc, mf_classic_dict_attack, MfClassicDictAttack)
+ADD_SCENE(nfc, mf_classic_write, MfClassicWrite)
+ADD_SCENE(nfc, mf_classic_write_success, MfClassicWriteSuccess)
+ADD_SCENE(nfc, mf_classic_write_fail, MfClassicWriteFail)
+ADD_SCENE(nfc, mf_classic_update, MfClassicUpdate)
+ADD_SCENE(nfc, mf_classic_update_success, MfClassicUpdateSuccess)
+ADD_SCENE(nfc, mf_classic_wrong_card, MfClassicWrongCard)
 ADD_SCENE(nfc, emv_read_success, EmvReadSuccess)
 ADD_SCENE(nfc, emv_menu, EmvMenu)
 ADD_SCENE(nfc, passport_read, PassportReadSuccess)
diff --git a/applications/main/nfc/scenes/nfc_scene_detect_reader.c b/applications/main/nfc/scenes/nfc_scene_detect_reader.c
index abf1437d2..745946157 100644
--- a/applications/main/nfc/scenes/nfc_scene_detect_reader.c
+++ b/applications/main/nfc/scenes/nfc_scene_detect_reader.c
@@ -28,6 +28,11 @@ void nfc_scene_detect_reader_on_enter(void* context) {
 
     detect_reader_set_callback(nfc->detect_reader, nfc_scene_detect_reader_callback, nfc);
     detect_reader_set_nonces_max(nfc->detect_reader, NFC_SCENE_DETECT_READER_PAIR_NONCES_MAX);
+    NfcDeviceData* dev_data = &nfc->dev->dev_data;
+    if(dev_data->nfc_data.uid_len) {
+        detect_reader_set_uid(
+            nfc->detect_reader, dev_data->nfc_data.uid, dev_data->nfc_data.uid_len);
+    }
 
     // Store number of collected nonces in scene state
     scene_manager_set_scene_state(nfc->scene_manager, NfcSceneDetectReader, 0);
diff --git a/applications/main/nfc/scenes/nfc_scene_mf_classic_update.c b/applications/main/nfc/scenes/nfc_scene_mf_classic_update.c
new file mode 100644
index 000000000..dd3a6f7d5
--- /dev/null
+++ b/applications/main/nfc/scenes/nfc_scene_mf_classic_update.c
@@ -0,0 +1,98 @@
+#include "../nfc_i.h"
+#include <dolphin/dolphin.h>
+
+enum {
+    NfcSceneMfClassicUpdateStateCardSearch,
+    NfcSceneMfClassicUpdateStateCardFound,
+};
+
+bool nfc_mf_classic_update_worker_callback(NfcWorkerEvent event, void* context) {
+    furi_assert(context);
+
+    Nfc* nfc = context;
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, event);
+
+    return true;
+}
+
+static void nfc_scene_mf_classic_update_setup_view(Nfc* nfc) {
+    Popup* popup = nfc->popup;
+    popup_reset(popup);
+    uint32_t state = scene_manager_get_scene_state(nfc->scene_manager, NfcSceneMfClassicUpdate);
+
+    if(state == NfcSceneMfClassicUpdateStateCardSearch) {
+        popup_set_text(
+            nfc->popup, "Apply the initial\ncard only", 128, 32, AlignRight, AlignCenter);
+        popup_set_icon(nfc->popup, 0, 8, &I_NFC_manual_60x50);
+    } else {
+        popup_set_header(popup, "Updating\nDon't move...", 52, 32, AlignLeft, AlignCenter);
+        popup_set_icon(popup, 12, 23, &A_Loading_24);
+    }
+
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewPopup);
+}
+
+void nfc_scene_mf_classic_update_on_enter(void* context) {
+    Nfc* nfc = context;
+    DOLPHIN_DEED(DolphinDeedNfcEmulate);
+
+    scene_manager_set_scene_state(
+        nfc->scene_manager, NfcSceneMfClassicUpdate, NfcSceneMfClassicUpdateStateCardSearch);
+    nfc_scene_mf_classic_update_setup_view(nfc);
+
+    // Setup and start worker
+    nfc_worker_start(
+        nfc->worker,
+        NfcWorkerStateMfClassicUpdate,
+        &nfc->dev->dev_data,
+        nfc_mf_classic_update_worker_callback,
+        nfc);
+    nfc_blink_emulate_start(nfc);
+}
+
+bool nfc_scene_mf_classic_update_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == NfcWorkerEventSuccess) {
+            nfc_worker_stop(nfc->worker);
+            if(nfc_device_save_shadow(nfc->dev, nfc->dev->dev_name)) {
+                scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicUpdateSuccess);
+            } else {
+                scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicWrongCard);
+            }
+            consumed = true;
+        } else if(event.event == NfcWorkerEventWrongCard) {
+            nfc_worker_stop(nfc->worker);
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicWrongCard);
+            consumed = true;
+        } else if(event.event == NfcWorkerEventCardDetected) {
+            scene_manager_set_scene_state(
+                nfc->scene_manager,
+                NfcSceneMfClassicUpdate,
+                NfcSceneMfClassicUpdateStateCardFound);
+            nfc_scene_mf_classic_update_setup_view(nfc);
+            consumed = true;
+        } else if(event.event == NfcWorkerEventNoCardDetected) {
+            scene_manager_set_scene_state(
+                nfc->scene_manager,
+                NfcSceneMfClassicUpdate,
+                NfcSceneMfClassicUpdateStateCardSearch);
+            nfc_scene_mf_classic_update_setup_view(nfc);
+            consumed = true;
+        }
+    }
+    return consumed;
+}
+
+void nfc_scene_mf_classic_update_on_exit(void* context) {
+    Nfc* nfc = context;
+    nfc_worker_stop(nfc->worker);
+    scene_manager_set_scene_state(
+        nfc->scene_manager, NfcSceneMfClassicUpdate, NfcSceneMfClassicUpdateStateCardSearch);
+    // Clear view
+    popup_reset(nfc->popup);
+
+    nfc_blink_stop(nfc);
+}
diff --git a/applications/main/nfc/scenes/nfc_scene_mf_classic_update_success.c b/applications/main/nfc/scenes/nfc_scene_mf_classic_update_success.c
new file mode 100644
index 000000000..fef8fd5e9
--- /dev/null
+++ b/applications/main/nfc/scenes/nfc_scene_mf_classic_update_success.c
@@ -0,0 +1,44 @@
+#include "../nfc_i.h"
+#include <dolphin/dolphin.h>
+
+void nfc_scene_mf_classic_update_success_popup_callback(void* context) {
+    Nfc* nfc = context;
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, NfcCustomEventViewExit);
+}
+
+void nfc_scene_mf_classic_update_success_on_enter(void* context) {
+    Nfc* nfc = context;
+    DOLPHIN_DEED(DolphinDeedNfcSave);
+
+    notification_message(nfc->notifications, &sequence_success);
+
+    Popup* popup = nfc->popup;
+    popup_set_icon(popup, 32, 5, &I_DolphinNice_96x59);
+    popup_set_header(popup, "Updated!", 11, 20, AlignLeft, AlignBottom);
+    popup_set_timeout(popup, 1500);
+    popup_set_context(popup, nfc);
+    popup_set_callback(popup, nfc_scene_mf_classic_update_success_popup_callback);
+    popup_enable_timeout(popup);
+
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewPopup);
+}
+
+bool nfc_scene_mf_classic_update_success_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == NfcCustomEventViewExit) {
+            consumed = scene_manager_search_and_switch_to_previous_scene(
+                nfc->scene_manager, NfcSceneFileSelect);
+        }
+    }
+    return consumed;
+}
+
+void nfc_scene_mf_classic_update_success_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    // Clear view
+    popup_reset(nfc->popup);
+}
diff --git a/applications/main/nfc/scenes/nfc_scene_mf_classic_write.c b/applications/main/nfc/scenes/nfc_scene_mf_classic_write.c
new file mode 100644
index 000000000..3543cbc58
--- /dev/null
+++ b/applications/main/nfc/scenes/nfc_scene_mf_classic_write.c
@@ -0,0 +1,92 @@
+#include "../nfc_i.h"
+#include <dolphin/dolphin.h>
+
+enum {
+    NfcSceneMfClassicWriteStateCardSearch,
+    NfcSceneMfClassicWriteStateCardFound,
+};
+
+bool nfc_mf_classic_write_worker_callback(NfcWorkerEvent event, void* context) {
+    furi_assert(context);
+
+    Nfc* nfc = context;
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, event);
+
+    return true;
+}
+
+static void nfc_scene_mf_classic_write_setup_view(Nfc* nfc) {
+    Popup* popup = nfc->popup;
+    popup_reset(popup);
+    uint32_t state = scene_manager_get_scene_state(nfc->scene_manager, NfcSceneMfClassicWrite);
+
+    if(state == NfcSceneMfClassicWriteStateCardSearch) {
+        popup_set_text(
+            nfc->popup, "Apply the initial\ncard only", 128, 32, AlignRight, AlignCenter);
+        popup_set_icon(nfc->popup, 0, 8, &I_NFC_manual_60x50);
+    } else {
+        popup_set_header(popup, "Writing\nDon't move...", 52, 32, AlignLeft, AlignCenter);
+        popup_set_icon(popup, 12, 23, &A_Loading_24);
+    }
+
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewPopup);
+}
+
+void nfc_scene_mf_classic_write_on_enter(void* context) {
+    Nfc* nfc = context;
+    DOLPHIN_DEED(DolphinDeedNfcEmulate);
+
+    scene_manager_set_scene_state(
+        nfc->scene_manager, NfcSceneMfClassicWrite, NfcSceneMfClassicWriteStateCardSearch);
+    nfc_scene_mf_classic_write_setup_view(nfc);
+
+    // Setup and start worker
+    nfc_worker_start(
+        nfc->worker,
+        NfcWorkerStateMfClassicWrite,
+        &nfc->dev->dev_data,
+        nfc_mf_classic_write_worker_callback,
+        nfc);
+    nfc_blink_emulate_start(nfc);
+}
+
+bool nfc_scene_mf_classic_write_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == NfcWorkerEventSuccess) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicWriteSuccess);
+            consumed = true;
+        } else if(event.event == NfcWorkerEventFail) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicWriteFail);
+            consumed = true;
+        } else if(event.event == NfcWorkerEventWrongCard) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicWrongCard);
+            consumed = true;
+        } else if(event.event == NfcWorkerEventCardDetected) {
+            scene_manager_set_scene_state(
+                nfc->scene_manager, NfcSceneMfClassicWrite, NfcSceneMfClassicWriteStateCardFound);
+            nfc_scene_mf_classic_write_setup_view(nfc);
+            consumed = true;
+        } else if(event.event == NfcWorkerEventNoCardDetected) {
+            scene_manager_set_scene_state(
+                nfc->scene_manager, NfcSceneMfClassicWrite, NfcSceneMfClassicWriteStateCardSearch);
+            nfc_scene_mf_classic_write_setup_view(nfc);
+            consumed = true;
+        }
+    }
+    return consumed;
+}
+
+void nfc_scene_mf_classic_write_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    nfc_worker_stop(nfc->worker);
+    scene_manager_set_scene_state(
+        nfc->scene_manager, NfcSceneMfClassicWrite, NfcSceneMfClassicWriteStateCardSearch);
+    // Clear view
+    popup_reset(nfc->popup);
+
+    nfc_blink_stop(nfc);
+}
diff --git a/applications/main/nfc/scenes/nfc_scene_mf_classic_write_fail.c b/applications/main/nfc/scenes/nfc_scene_mf_classic_write_fail.c
new file mode 100644
index 000000000..aeea6eef0
--- /dev/null
+++ b/applications/main/nfc/scenes/nfc_scene_mf_classic_write_fail.c
@@ -0,0 +1,58 @@
+#include "../nfc_i.h"
+
+void nfc_scene_mf_classic_write_fail_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    Nfc* nfc = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(nfc->view_dispatcher, result);
+    }
+}
+
+void nfc_scene_mf_classic_write_fail_on_enter(void* context) {
+    Nfc* nfc = context;
+    Widget* widget = nfc->widget;
+
+    notification_message(nfc->notifications, &sequence_error);
+
+    widget_add_icon_element(widget, 72, 17, &I_DolphinCommon_56x48);
+    widget_add_string_element(
+        widget, 7, 4, AlignLeft, AlignTop, FontPrimary, "Writing gone wrong!");
+    widget_add_string_multiline_element(
+        widget,
+        7,
+        17,
+        AlignLeft,
+        AlignTop,
+        FontSecondary,
+        "Not all sectors\nwere written\ncorrectly.");
+
+    widget_add_button_element(
+        widget, GuiButtonTypeLeft, "Finish", nfc_scene_mf_classic_write_fail_widget_callback, nfc);
+
+    // Setup and start worker
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewWidget);
+}
+
+bool nfc_scene_mf_classic_write_fail_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeLeft) {
+            consumed = scene_manager_search_and_switch_to_previous_scene(
+                nfc->scene_manager, NfcSceneFileSelect);
+        }
+    } else if(event.type == SceneManagerEventTypeBack) {
+        consumed = scene_manager_search_and_switch_to_previous_scene(
+            nfc->scene_manager, NfcSceneSavedMenu);
+    }
+    return consumed;
+}
+
+void nfc_scene_mf_classic_write_fail_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    widget_reset(nfc->widget);
+}
diff --git a/applications/main/nfc/scenes/nfc_scene_mf_classic_write_success.c b/applications/main/nfc/scenes/nfc_scene_mf_classic_write_success.c
new file mode 100644
index 000000000..2f2a3beb1
--- /dev/null
+++ b/applications/main/nfc/scenes/nfc_scene_mf_classic_write_success.c
@@ -0,0 +1,44 @@
+#include "../nfc_i.h"
+#include <dolphin/dolphin.h>
+
+void nfc_scene_mf_classic_write_success_popup_callback(void* context) {
+    Nfc* nfc = context;
+    view_dispatcher_send_custom_event(nfc->view_dispatcher, NfcCustomEventViewExit);
+}
+
+void nfc_scene_mf_classic_write_success_on_enter(void* context) {
+    Nfc* nfc = context;
+    DOLPHIN_DEED(DolphinDeedNfcSave);
+
+    notification_message(nfc->notifications, &sequence_success);
+
+    Popup* popup = nfc->popup;
+    popup_set_icon(popup, 32, 5, &I_DolphinNice_96x59);
+    popup_set_header(popup, "Successfully\nwritten", 13, 22, AlignLeft, AlignBottom);
+    popup_set_timeout(popup, 1500);
+    popup_set_context(popup, nfc);
+    popup_set_callback(popup, nfc_scene_mf_classic_write_success_popup_callback);
+    popup_enable_timeout(popup);
+
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewPopup);
+}
+
+bool nfc_scene_mf_classic_write_success_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == NfcCustomEventViewExit) {
+            consumed = scene_manager_search_and_switch_to_previous_scene(
+                nfc->scene_manager, NfcSceneFileSelect);
+        }
+    }
+    return consumed;
+}
+
+void nfc_scene_mf_classic_write_success_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    // Clear view
+    popup_reset(nfc->popup);
+}
diff --git a/applications/main/nfc/scenes/nfc_scene_mf_classic_wrong_card.c b/applications/main/nfc/scenes/nfc_scene_mf_classic_wrong_card.c
new file mode 100644
index 000000000..2c56270e3
--- /dev/null
+++ b/applications/main/nfc/scenes/nfc_scene_mf_classic_wrong_card.c
@@ -0,0 +1,53 @@
+#include "../nfc_i.h"
+
+void nfc_scene_mf_classic_wrong_card_widget_callback(
+    GuiButtonType result,
+    InputType type,
+    void* context) {
+    Nfc* nfc = context;
+    if(type == InputTypeShort) {
+        view_dispatcher_send_custom_event(nfc->view_dispatcher, result);
+    }
+}
+
+void nfc_scene_mf_classic_wrong_card_on_enter(void* context) {
+    Nfc* nfc = context;
+    Widget* widget = nfc->widget;
+
+    notification_message(nfc->notifications, &sequence_error);
+
+    widget_add_icon_element(widget, 73, 17, &I_DolphinCommon_56x48);
+    widget_add_string_element(
+        widget, 3, 4, AlignLeft, AlignTop, FontPrimary, "This is wrong card");
+    widget_add_string_multiline_element(
+        widget,
+        4,
+        17,
+        AlignLeft,
+        AlignTop,
+        FontSecondary,
+        "Data management\nis only possible\nwith initial card");
+    widget_add_button_element(
+        widget, GuiButtonTypeLeft, "Retry", nfc_scene_mf_classic_wrong_card_widget_callback, nfc);
+
+    // Setup and start worker
+    view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewWidget);
+}
+
+bool nfc_scene_mf_classic_wrong_card_on_event(void* context, SceneManagerEvent event) {
+    Nfc* nfc = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == GuiButtonTypeLeft) {
+            consumed = scene_manager_previous_scene(nfc->scene_manager);
+        }
+    }
+    return consumed;
+}
+
+void nfc_scene_mf_classic_wrong_card_on_exit(void* context) {
+    Nfc* nfc = context;
+
+    widget_reset(nfc->widget);
+}
\ No newline at end of file
diff --git a/applications/main/nfc/scenes/nfc_scene_saved_menu.c b/applications/main/nfc/scenes/nfc_scene_saved_menu.c
index b2c2b87e8..a8a850ece 100644
--- a/applications/main/nfc/scenes/nfc_scene_saved_menu.c
+++ b/applications/main/nfc/scenes/nfc_scene_saved_menu.c
@@ -4,6 +4,9 @@
 enum SubmenuIndex {
     SubmenuIndexEmulate,
     SubmenuIndexEditUid,
+    SubmenuIndexDetectReader,
+    SubmenuIndexWrite,
+    SubmenuIndexUpdate,
     SubmenuIndexRename,
     SubmenuIndexDelete,
     SubmenuIndexInfo,
@@ -45,6 +48,28 @@ void nfc_scene_saved_menu_on_enter(void* context) {
         submenu_add_item(
             submenu, "Emulate", SubmenuIndexEmulate, nfc_scene_saved_menu_submenu_callback, nfc);
     }
+    if(nfc->dev->format == NfcDeviceSaveFormatMifareClassic) {
+        if(!mf_classic_is_card_read(&nfc->dev->dev_data.mf_classic_data)) {
+            submenu_add_item(
+                submenu,
+                "Detect reader",
+                SubmenuIndexDetectReader,
+                nfc_scene_saved_menu_submenu_callback,
+                nfc);
+        }
+        submenu_add_item(
+            submenu,
+            "Write To Initial Card",
+            SubmenuIndexWrite,
+            nfc_scene_saved_menu_submenu_callback,
+            nfc);
+        submenu_add_item(
+            submenu,
+            "Update From Initial Card",
+            SubmenuIndexUpdate,
+            nfc_scene_saved_menu_submenu_callback,
+            nfc);
+    }
     submenu_add_item(
         submenu, "Info", SubmenuIndexInfo, nfc_scene_saved_menu_submenu_callback, nfc);
     if(nfc->dev->format == NfcDeviceSaveFormatMifareUl &&
@@ -97,6 +122,15 @@ bool nfc_scene_saved_menu_on_event(void* context, SceneManagerEvent event) {
             }
             DOLPHIN_DEED(DolphinDeedNfcEmulate);
             consumed = true;
+        } else if(event.event == SubmenuIndexDetectReader) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneDetectReader);
+            consumed = true;
+        } else if(event.event == SubmenuIndexWrite) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicWrite);
+            consumed = true;
+        } else if(event.event == SubmenuIndexUpdate) {
+            scene_manager_next_scene(nfc->scene_manager, NfcSceneMfClassicUpdate);
+            consumed = true;
         } else if(event.event == SubmenuIndexRename) {
             scene_manager_next_scene(nfc->scene_manager, NfcSceneSaveName);
             consumed = true;
diff --git a/applications/main/nfc/scenes/nfc_scene_start.c b/applications/main/nfc/scenes/nfc_scene_start.c
index 0c4ec1cf9..028f85ae0 100644
--- a/applications/main/nfc/scenes/nfc_scene_start.c
+++ b/applications/main/nfc/scenes/nfc_scene_start.c
@@ -53,6 +53,7 @@ bool nfc_scene_start_on_event(void* context, SceneManagerEvent event) {
         } else if(event.event == SubmenuIndexDetectReader) {
             bool sd_exist = storage_sd_status(nfc->dev->storage) == FSE_OK;
             if(sd_exist) {
+                nfc_device_data_clear(&nfc->dev->dev_data);
                 scene_manager_next_scene(nfc->scene_manager, NfcSceneDetectReader);
                 DOLPHIN_DEED(DolphinDeedNfcDetectReader);
             } else {
diff --git a/applications/main/nfc/views/detect_reader.c b/applications/main/nfc/views/detect_reader.c
index 91537868b..e5951beb2 100644
--- a/applications/main/nfc/views/detect_reader.c
+++ b/applications/main/nfc/views/detect_reader.c
@@ -2,6 +2,8 @@
 #include <assets_icons.h>
 #include <gui/elements.h>
 
+#define DETECT_READER_UID_MAX_LEN (10)
+
 struct DetectReader {
     View* view;
     DetectReaderDoneCallback callback;
@@ -12,6 +14,7 @@ typedef struct {
     uint16_t nonces;
     uint16_t nonces_max;
     DetectReaderState state;
+    FuriString* uid_str;
 } DetectReaderViewModel;
 
 static void detect_reader_draw_callback(Canvas* canvas, void* model) {
@@ -23,6 +26,10 @@ static void detect_reader_draw_callback(Canvas* canvas, void* model) {
     if(m->state == DetectReaderStateStart) {
         snprintf(text, sizeof(text), "Touch the reader");
         canvas_draw_icon(canvas, 21, 13, &I_Move_flipper_26x39);
+        if(furi_string_size(m->uid_str)) {
+            elements_multiline_text_aligned(
+                canvas, 64, 64, AlignCenter, AlignBottom, furi_string_get_cstr(m->uid_str));
+        }
     } else if(m->state == DetectReaderStateReaderDetected) {
         snprintf(text, sizeof(text), "Move the Flipper away");
         canvas_draw_icon(canvas, 24, 25, &I_Release_arrow_18x15);
@@ -86,12 +93,24 @@ DetectReader* detect_reader_alloc() {
     view_set_input_callback(detect_reader->view, detect_reader_input_callback);
     view_set_context(detect_reader->view, detect_reader);
 
+    with_view_model(
+        detect_reader->view,
+        DetectReaderViewModel * model,
+        { model->uid_str = furi_string_alloc(); },
+        false);
+
     return detect_reader;
 }
 
 void detect_reader_free(DetectReader* detect_reader) {
     furi_assert(detect_reader);
 
+    with_view_model(
+        detect_reader->view,
+        DetectReaderViewModel * model,
+        { furi_string_free(model->uid_str); },
+        false);
+
     view_free(detect_reader->view);
     free(detect_reader);
 }
@@ -106,6 +125,7 @@ void detect_reader_reset(DetectReader* detect_reader) {
             model->nonces = 0;
             model->nonces_max = 0;
             model->state = DetectReaderStateStart;
+            furi_string_reset(model->uid_str);
         },
         false);
 }
@@ -152,3 +172,19 @@ void detect_reader_set_state(DetectReader* detect_reader, DetectReaderState stat
     with_view_model(
         detect_reader->view, DetectReaderViewModel * model, { model->state = state; }, true);
 }
+
+void detect_reader_set_uid(DetectReader* detect_reader, uint8_t* uid, uint8_t uid_len) {
+    furi_assert(detect_reader);
+    furi_assert(uid);
+    furi_assert(uid_len < DETECT_READER_UID_MAX_LEN);
+    with_view_model(
+        detect_reader->view,
+        DetectReaderViewModel * model,
+        {
+            furi_string_set_str(model->uid_str, "UID:");
+            for(size_t i = 0; i < uid_len; i++) {
+                furi_string_cat_printf(model->uid_str, " %02X", uid[i]);
+            }
+        },
+        true);
+}
diff --git a/applications/main/nfc/views/detect_reader.h b/applications/main/nfc/views/detect_reader.h
index aabdd7c87..6481216b4 100644
--- a/applications/main/nfc/views/detect_reader.h
+++ b/applications/main/nfc/views/detect_reader.h
@@ -32,3 +32,5 @@ void detect_reader_set_nonces_max(DetectReader* detect_reader, uint16_t nonces_m
 void detect_reader_set_nonces_collected(DetectReader* detect_reader, uint16_t nonces_collected);
 
 void detect_reader_set_state(DetectReader* detect_reader, DetectReaderState state);
+
+void detect_reader_set_uid(DetectReader* detect_reader, uint8_t* uid, uint8_t uid_len);
diff --git a/applications/main/subghz/views/receiver.c b/applications/main/subghz/views/receiver.c
index 547b3c3fd..ebbcc2453 100644
--- a/applications/main/subghz/views/receiver.c
+++ b/applications/main/subghz/views/receiver.c
@@ -30,9 +30,9 @@ typedef struct SubGhzReceiverHistory SubGhzReceiverHistory;
 
 static const Icon* ReceiverItemIcons[] = {
     [SubGhzProtocolTypeUnknown] = &I_Quest_7x8,
-    [SubGhzProtocolTypeStatic] = &I_Unlock_7x8,
-    [SubGhzProtocolTypeDynamic] = &I_Lock_7x8,
-    [SubGhzProtocolTypeRAW] = &I_Unlock_7x8,
+    [SubGhzProtocolTypeStatic] = &I_Static_9x7,
+    [SubGhzProtocolTypeDynamic] = &I_Dynamic_9x7,
+    [SubGhzProtocolTypeRAW] = &I_Raw_9x7,
 };
 
 typedef enum {
diff --git a/applications/plugins/flipfrid/application.fam b/applications/plugins/flipfrid/application.fam
index 44ae894d4..fc089de48 100644
--- a/applications/plugins/flipfrid/application.fam
+++ b/applications/plugins/flipfrid/application.fam
@@ -9,5 +9,5 @@ App(
     order=180,
     fap_icon="rfid_10px.png",
     fap_category="Tools",
-    fap_icon_assets="icons",
+    fap_icon_assets="images",
 )
diff --git a/applications/plugins/flipfrid/flipfrid.h b/applications/plugins/flipfrid/flipfrid.h
index 248e2322e..4e3e7a37b 100644
--- a/applications/plugins/flipfrid/flipfrid.h
+++ b/applications/plugins/flipfrid/flipfrid.h
@@ -15,6 +15,8 @@
 #include <toolbox/stream/file_stream.h>
 #include <toolbox/stream/buffered_file_stream.h>
 
+#include <RFID_Fuzzer_icons.h>
+
 #include <lib/lfrfid/lfrfid_worker.h>
 #include <lfrfid/protocols/lfrfid_protocols.h>
 
diff --git a/applications/plugins/flipfrid/images/125_10px.png b/applications/plugins/flipfrid/images/125_10px.png
new file mode 100644
index 000000000..ce01284a2
Binary files /dev/null and b/applications/plugins/flipfrid/images/125_10px.png differ
diff --git a/applications/plugins/flipper_i2ctools/application.fam b/applications/plugins/flipper_i2ctools/application.fam
index d4b4a975f..6fafeef58 100644
--- a/applications/plugins/flipper_i2ctools/application.fam
+++ b/applications/plugins/flipper_i2ctools/application.fam
@@ -9,5 +9,5 @@ App(
     order=175,
     fap_icon="i2ctools.png",
     fap_category="GPIO",
-    fap_icon_assets="icons",
+    fap_icon_assets="images",
 )
\ No newline at end of file
diff --git a/applications/plugins/flipper_i2ctools/images/ButtonDown_7x4.png b/applications/plugins/flipper_i2ctools/images/ButtonDown_7x4.png
new file mode 100644
index 000000000..2954bb6a6
Binary files /dev/null and b/applications/plugins/flipper_i2ctools/images/ButtonDown_7x4.png differ
diff --git a/applications/plugins/flipper_i2ctools/images/ButtonLeft_4x7.png b/applications/plugins/flipper_i2ctools/images/ButtonLeft_4x7.png
new file mode 100644
index 000000000..0b4655d43
Binary files /dev/null and b/applications/plugins/flipper_i2ctools/images/ButtonLeft_4x7.png differ
diff --git a/applications/plugins/flipper_i2ctools/images/ButtonRight_4x7.png b/applications/plugins/flipper_i2ctools/images/ButtonRight_4x7.png
new file mode 100644
index 000000000..8e1c74c1c
Binary files /dev/null and b/applications/plugins/flipper_i2ctools/images/ButtonRight_4x7.png differ
diff --git a/applications/plugins/flipper_i2ctools/images/ButtonUp_7x4.png b/applications/plugins/flipper_i2ctools/images/ButtonUp_7x4.png
new file mode 100644
index 000000000..1be79328b
Binary files /dev/null and b/applications/plugins/flipper_i2ctools/images/ButtonUp_7x4.png differ
diff --git a/applications/plugins/flipper_i2ctools/images/Ok_btn_9x9.png b/applications/plugins/flipper_i2ctools/images/Ok_btn_9x9.png
new file mode 100644
index 000000000..9a1539da2
Binary files /dev/null and b/applications/plugins/flipper_i2ctools/images/Ok_btn_9x9.png differ
diff --git a/applications/plugins/flipper_i2ctools/images/passport_bad3_46x49.png b/applications/plugins/flipper_i2ctools/images/passport_bad3_46x49.png
new file mode 100644
index 000000000..e39e6629d
Binary files /dev/null and b/applications/plugins/flipper_i2ctools/images/passport_bad3_46x49.png differ
diff --git a/applications/plugins/flipper_i2ctools/images/passport_happy2_46x49.png b/applications/plugins/flipper_i2ctools/images/passport_happy2_46x49.png
new file mode 100644
index 000000000..f64e770e5
Binary files /dev/null and b/applications/plugins/flipper_i2ctools/images/passport_happy2_46x49.png differ
diff --git a/applications/plugins/flipper_i2ctools/images/passport_happy3_46x49.png b/applications/plugins/flipper_i2ctools/images/passport_happy3_46x49.png
new file mode 100644
index 000000000..7aef17674
Binary files /dev/null and b/applications/plugins/flipper_i2ctools/images/passport_happy3_46x49.png differ
diff --git a/applications/plugins/flipper_i2ctools/views/main_view.c b/applications/plugins/flipper_i2ctools/views/main_view.c
index cc175904e..dfbc24e9b 100644
--- a/applications/plugins/flipper_i2ctools/views/main_view.c
+++ b/applications/plugins/flipper_i2ctools/views/main_view.c
@@ -1,5 +1,4 @@
 #include "main_view.h"
-#include "i2cTools_icons.h"
 
 void draw_main_view(Canvas* canvas, i2cMainView* main_view) {
     canvas_clear(canvas);
diff --git a/applications/plugins/flipper_i2ctools/views/main_view.h b/applications/plugins/flipper_i2ctools/views/main_view.h
index 7a604fc60..ee7be7f9f 100644
--- a/applications/plugins/flipper_i2ctools/views/main_view.h
+++ b/applications/plugins/flipper_i2ctools/views/main_view.h
@@ -1,6 +1,7 @@
 #include <furi.h>
 #include <furi_hal.h>
 #include <gui/gui.h>
+#include <i2cTools_icons.h>
 
 #define APP_NAME "I2C Tools"
 
diff --git a/applications/plugins/flipper_i2ctools/views/scanner_view.c b/applications/plugins/flipper_i2ctools/views/scanner_view.c
index 17bbf81c1..346f82590 100644
--- a/applications/plugins/flipper_i2ctools/views/scanner_view.c
+++ b/applications/plugins/flipper_i2ctools/views/scanner_view.c
@@ -1,5 +1,4 @@
 #include "scanner_view.h"
-#include "i2cTools_icons.h"
 
 void draw_scanner_view(Canvas* canvas, i2cScanner* i2c_scanner) {
     canvas_clear(canvas);
diff --git a/applications/plugins/flipper_i2ctools/views/scanner_view.h b/applications/plugins/flipper_i2ctools/views/scanner_view.h
index 249a12942..99ba3c29f 100644
--- a/applications/plugins/flipper_i2ctools/views/scanner_view.h
+++ b/applications/plugins/flipper_i2ctools/views/scanner_view.h
@@ -2,6 +2,8 @@
 #include <furi_hal.h>
 #include <gui/gui.h>
 
+#include <i2cTools_icons.h>
+
 #include "../i2cscanner.h"
 
 #define SCAN_MENU_TEXT "Scan"
diff --git a/applications/plugins/flipper_i2ctools/views/sender_view.h b/applications/plugins/flipper_i2ctools/views/sender_view.h
index d0ab28ba4..866e483aa 100644
--- a/applications/plugins/flipper_i2ctools/views/sender_view.h
+++ b/applications/plugins/flipper_i2ctools/views/sender_view.h
@@ -2,6 +2,8 @@
 #include <furi_hal.h>
 #include <gui/gui.h>
 
+#include <i2cTools_icons.h>
+
 #include "../i2csender.h"
 
 #define SEND_MENU_TEXT "Send"
diff --git a/applications/plugins/flipper_i2ctools/views/sniffer_view.c b/applications/plugins/flipper_i2ctools/views/sniffer_view.c
index 0761d4ca4..8f289066c 100644
--- a/applications/plugins/flipper_i2ctools/views/sniffer_view.c
+++ b/applications/plugins/flipper_i2ctools/views/sniffer_view.c
@@ -1,5 +1,4 @@
 #include "sniffer_view.h"
-#include "i2cTools_icons.h"
 
 void draw_sniffer_view(Canvas* canvas, i2cSniffer* i2c_sniffer) {
     canvas_clear(canvas);
diff --git a/applications/plugins/flipper_i2ctools/views/sniffer_view.h b/applications/plugins/flipper_i2ctools/views/sniffer_view.h
index da46aaef1..56a213895 100644
--- a/applications/plugins/flipper_i2ctools/views/sniffer_view.h
+++ b/applications/plugins/flipper_i2ctools/views/sniffer_view.h
@@ -2,6 +2,8 @@
 #include <furi_hal.h>
 #include <gui/gui.h>
 
+#include <i2cTools_icons.h>
+
 #include "../i2csniffer.h"
 
 #define SNIFF_MENU_TEXT "Sniff"
diff --git a/applications/plugins/gps_nmea_uart/.gitignore b/applications/plugins/gps_nmea_uart/.gitignore
deleted file mode 100644
index c6127b38c..000000000
--- a/applications/plugins/gps_nmea_uart/.gitignore
+++ /dev/null
@@ -1,52 +0,0 @@
-# Prerequisites
-*.d
-
-# Object files
-*.o
-*.ko
-*.obj
-*.elf
-
-# Linker output
-*.ilk
-*.map
-*.exp
-
-# Precompiled Headers
-*.gch
-*.pch
-
-# Libraries
-*.lib
-*.a
-*.la
-*.lo
-
-# Shared objects (inc. Windows DLLs)
-*.dll
-*.so
-*.so.*
-*.dylib
-
-# Executables
-*.exe
-*.out
-*.app
-*.i*86
-*.x86_64
-*.hex
-
-# Debug files
-*.dSYM/
-*.su
-*.idb
-*.pdb
-
-# Kernel Module Compile Results
-*.mod*
-*.cmd
-.tmp_versions/
-modules.order
-Module.symvers
-Mkfile.old
-dkms.conf
diff --git a/applications/plugins/gps_nmea_uart/README.md b/applications/plugins/gps_nmea_uart/README.md
index dd3e7f3ae..ffeb6ee99 100644
--- a/applications/plugins/gps_nmea_uart/README.md
+++ b/applications/plugins/gps_nmea_uart/README.md
@@ -3,6 +3,8 @@
 A simple Flipper Zero application for NMEA 0183 serial GPS modules, such as the
 [Adafruit Ultimate GPS Breakout].
 
+[Original link](https://github.com/ezod/flipperzero-gps)
+
 ![ui](ui.png)
 
 Heavy lifting (NMEA parsing) provided by [minmea], which is included in this
@@ -15,14 +17,6 @@ Connect the GPS module to power and the USART using GPIO pins 9 (3.3V), 11
 
 ![wiring](wiring.png)
 
-## Building the FAP
-
-1. Clone the [flipperzero-firmware] repository.
-2. Create a symbolic link in `applications_user` named `gps`, pointing to this
-   repository.
-3. Compile with `./fbt fap_gps`.
-4. Copy `build/f7-firmware-D/.extapps/gps.fap` to `apps/Tools` on the SD card
-   (directly or using [qFlipper]).
 
 ## Contributing
 
diff --git a/applications/plugins/metronome/application.fam b/applications/plugins/metronome/application.fam
index 0b79f2ff2..c1564e7f4 100644
--- a/applications/plugins/metronome/application.fam
+++ b/applications/plugins/metronome/application.fam
@@ -9,6 +9,7 @@ App(
     ],
     fap_icon="metronome_icon.png",
     fap_category="Music",
+    fap_icon_assets="images",
     stack_size=2 * 1024,
     fap_icon_assets="icons",
     order=20,
diff --git a/applications/plugins/metronome/images/ButtonUp_7x4.png b/applications/plugins/metronome/images/ButtonUp_7x4.png
new file mode 100644
index 000000000..1be79328b
Binary files /dev/null and b/applications/plugins/metronome/images/ButtonUp_7x4.png differ
diff --git a/applications/plugins/mousejacker/application.fam b/applications/plugins/mousejacker/application.fam
index 5791ac416..49d234916 100644
--- a/applications/plugins/mousejacker/application.fam
+++ b/applications/plugins/mousejacker/application.fam
@@ -12,5 +12,5 @@ App(
     order=50,
     fap_icon="mouse_10px.png",
     fap_category="GPIO",
-    fap_icon_assets="icons",
+    fap_icon_assets="images",
 )
diff --git a/applications/plugins/mousejacker/images/badusb_10px.png b/applications/plugins/mousejacker/images/badusb_10px.png
new file mode 100644
index 000000000..037474aa3
Binary files /dev/null and b/applications/plugins/mousejacker/images/badusb_10px.png differ
diff --git a/applications/plugins/mousejacker/images/sub1_10px.png b/applications/plugins/mousejacker/images/sub1_10px.png
new file mode 100644
index 000000000..5a25fdf4e
Binary files /dev/null and b/applications/plugins/mousejacker/images/sub1_10px.png differ
diff --git a/applications/plugins/music_player/application.fam b/applications/plugins/music_player/application.fam
index 2578d0aeb..1072f1524 100644
--- a/applications/plugins/music_player/application.fam
+++ b/applications/plugins/music_player/application.fam
@@ -12,8 +12,8 @@ App(
     stack_size=2 * 1024,
     order=45,
     fap_icon="icons/music_10px.png",
-    fap_category="Music",
     fap_icon_assets="icons",
+    fap_category="Music",
 )
 
 App(
diff --git a/applications/plugins/playlist/application.fam b/applications/plugins/playlist/application.fam
index 5c7fcc10b..31acd8ea2 100644
--- a/applications/plugins/playlist/application.fam
+++ b/applications/plugins/playlist/application.fam
@@ -9,4 +9,5 @@ App(
     order=200,
     fap_icon="playlist_10px.png",
     fap_category="Tools",
+    fap_icon_assets="images",
 )
diff --git a/applications/plugins/playlist/images/ButtonRight_4x7.png b/applications/plugins/playlist/images/ButtonRight_4x7.png
new file mode 100644
index 000000000..8e1c74c1c
Binary files /dev/null and b/applications/plugins/playlist/images/ButtonRight_4x7.png differ
diff --git a/applications/plugins/playlist/images/sub1_10px.png b/applications/plugins/playlist/images/sub1_10px.png
new file mode 100644
index 000000000..5a25fdf4e
Binary files /dev/null and b/applications/plugins/playlist/images/sub1_10px.png differ
diff --git a/applications/plugins/playlist/playlist.c b/applications/plugins/playlist/playlist.c
index 103a439cb..c2c77382c 100644
--- a/applications/plugins/playlist/playlist.c
+++ b/applications/plugins/playlist/playlist.c
@@ -6,7 +6,7 @@
 #include <storage/storage.h>
 
 #include <lib/toolbox/path.h>
-#include <assets_icons.h>
+#include <SubGHz_Playlist_icons.h>
 
 #include <lib/subghz/protocols/protocol_items.h>
 #include <flipper_format/flipper_format_i.h>
diff --git a/applications/plugins/totp/application.fam b/applications/plugins/totp/application.fam
index 1481b94c6..2765a4665 100644
--- a/applications/plugins/totp/application.fam
+++ b/applications/plugins/totp/application.fam
@@ -15,6 +15,6 @@ App(
     stack_size=2 * 1024,
     order=20,
     fap_category="Misc",
-    fap_icon="totp_10px.png",
-    fap_icon_assets="icons",
+    fap_icon_assets="images",
+    fap_icon="totp_10px.png"
 )
diff --git a/applications/plugins/totp/images/DolphinCommon_56x48.png b/applications/plugins/totp/images/DolphinCommon_56x48.png
new file mode 100644
index 000000000..089aaed83
Binary files /dev/null and b/applications/plugins/totp/images/DolphinCommon_56x48.png differ
diff --git a/applications/plugins/totp/scenes/add_new_token/totp_input_text.c b/applications/plugins/totp/scenes/add_new_token/totp_input_text.c
index e3a7f68a6..811cd2976 100644
--- a/applications/plugins/totp/scenes/add_new_token/totp_input_text.c
+++ b/applications/plugins/totp/scenes/add_new_token/totp_input_text.c
@@ -2,6 +2,16 @@
 #include <gui/view_i.h>
 #include "../../types/common.h"
 
+size_t strnlen(const char* s, size_t maxlen) {
+    size_t len;
+
+    for(len = 0; len < maxlen; len++, s++) {
+        if(!*s) break;
+    }
+
+    return len;
+}
+
 void view_draw(View* view, Canvas* canvas) {
     furi_assert(view);
     if(view->draw_callback) {
@@ -32,10 +42,14 @@ static void commit_text_input_callback(void* context) {
     InputTextSceneState* text_input_state = (InputTextSceneState*)context;
     if(text_input_state->callback != 0) {
         InputTextSceneCallbackResult* result = malloc(sizeof(InputTextSceneCallbackResult));
-        result->user_input_length = strlen(text_input_state->text_input_buffer);
+        result->user_input_length =
+            strnlen(text_input_state->text_input_buffer, INPUT_BUFFER_SIZE);
         result->user_input = malloc(result->user_input_length + 1);
         result->callback_data = text_input_state->callback_data;
-        strcpy(result->user_input, text_input_state->text_input_buffer);
+        strlcpy(
+            result->user_input,
+            text_input_state->text_input_buffer,
+            result->user_input_length + 1);
         text_input_state->callback(result);
     }
 }
diff --git a/applications/plugins/totp/scenes/add_new_token/totp_input_text.h b/applications/plugins/totp/scenes/add_new_token/totp_input_text.h
index a73a227b5..dda0dc301 100644
--- a/applications/plugins/totp/scenes/add_new_token/totp_input_text.h
+++ b/applications/plugins/totp/scenes/add_new_token/totp_input_text.h
@@ -10,7 +10,7 @@
 
 typedef struct {
     char* user_input;
-    uint8_t user_input_length;
+    size_t user_input_length;
     void* callback_data;
 } InputTextSceneCallbackResult;
 
diff --git a/applications/plugins/totp/scenes/add_new_token/totp_scene_add_new_token.c b/applications/plugins/totp/scenes/add_new_token/totp_scene_add_new_token.c
index fc39b66cd..cc4e6a69d 100644
--- a/applications/plugins/totp/scenes/add_new_token/totp_scene_add_new_token.c
+++ b/applications/plugins/totp/scenes/add_new_token/totp_scene_add_new_token.c
@@ -25,9 +25,9 @@ typedef enum {
 
 typedef struct {
     char* token_name;
-    uint8_t token_name_length;
+    size_t token_name_length;
     char* token_secret;
-    uint8_t token_secret_length;
+    size_t token_secret_length;
     bool saved;
     Control selected_control;
     InputTextSceneContext* token_name_input_context;
@@ -35,12 +35,12 @@ typedef struct {
     InputTextSceneState* input_state;
     uint32_t input_started_at;
     int16_t current_token_index;
-    int32_t screen_y_offset;
+    int16_t screen_y_offset;
     TokenHashAlgo algo;
     TokenDigitsCount digits_count;
 } SceneState;
 
-void totp_scene_add_new_token_init(PluginState* plugin_state) {
+void totp_scene_add_new_token_init(const PluginState* plugin_state) {
     UNUSED(plugin_state);
 }
 
@@ -235,7 +235,10 @@ bool totp_scene_add_new_token_handle_event(PluginEvent* const event, PluginState
 
                     if(token_secret_set) {
                         tokenInfo->name = malloc(scene_state->token_name_length + 1);
-                        strcpy(tokenInfo->name, scene_state->token_name);
+                        strlcpy(
+                            tokenInfo->name,
+                            scene_state->token_name,
+                            scene_state->token_name_length + 1);
                         tokenInfo->algo = scene_state->algo;
                         tokenInfo->digits = scene_state->digits_count;
 
@@ -308,6 +311,6 @@ void totp_scene_add_new_token_deactivate(PluginState* plugin_state) {
     plugin_state->current_scene_state = NULL;
 }
 
-void totp_scene_add_new_token_free(PluginState* plugin_state) {
+void totp_scene_add_new_token_free(const PluginState* plugin_state) {
     UNUSED(plugin_state);
 }
diff --git a/applications/plugins/totp/scenes/add_new_token/totp_scene_add_new_token.h b/applications/plugins/totp/scenes/add_new_token/totp_scene_add_new_token.h
index b65c567a2..7a0b0e68a 100644
--- a/applications/plugins/totp/scenes/add_new_token/totp_scene_add_new_token.h
+++ b/applications/plugins/totp/scenes/add_new_token/totp_scene_add_new_token.h
@@ -10,11 +10,11 @@ typedef struct {
     uint8_t current_token_index;
 } TokenAddEditSceneContext;
 
-void totp_scene_add_new_token_init(PluginState* plugin_state);
+void totp_scene_add_new_token_init(const PluginState* plugin_state);
 void totp_scene_add_new_token_activate(
     PluginState* plugin_state,
     const TokenAddEditSceneContext* context);
 void totp_scene_add_new_token_render(Canvas* const canvas, PluginState* plugin_state);
 bool totp_scene_add_new_token_handle_event(PluginEvent* const event, PluginState* plugin_state);
 void totp_scene_add_new_token_deactivate(PluginState* plugin_state);
-void totp_scene_add_new_token_free(PluginState* plugin_state);
+void totp_scene_add_new_token_free(const PluginState* plugin_state);
diff --git a/applications/plugins/totp/scenes/app_settings/totp_app_settings.c b/applications/plugins/totp/scenes/app_settings/totp_app_settings.c
index cdb775a8d..ea9a11e9b 100644
--- a/applications/plugins/totp/scenes/app_settings/totp_app_settings.c
+++ b/applications/plugins/totp/scenes/app_settings/totp_app_settings.c
@@ -16,7 +16,7 @@ typedef struct {
     Control selected_control;
 } SceneState;
 
-void totp_scene_app_settings_init(PluginState* plugin_state) {
+void totp_scene_app_settings_init(const PluginState* plugin_state) {
     UNUSED(plugin_state);
 }
 
@@ -53,7 +53,7 @@ static void two_digit_to_str(int8_t num, char* str) {
 }
 
 void totp_scene_app_settings_render(Canvas* const canvas, PluginState* plugin_state) {
-    SceneState* scene_state = (SceneState*)plugin_state->current_scene_state;
+    const SceneState* scene_state = (SceneState*)plugin_state->current_scene_state;
 
     canvas_set_font(canvas, FontPrimary);
     canvas_draw_str_aligned(canvas, 0, 0, AlignLeft, AlignTop, "Timezone offset");
@@ -90,7 +90,9 @@ void totp_scene_app_settings_render(Canvas* const canvas, PluginState* plugin_st
         scene_state->selected_control == ConfirmButton);
 }
 
-bool totp_scene_app_settings_handle_event(PluginEvent* const event, PluginState* plugin_state) {
+bool totp_scene_app_settings_handle_event(
+    const PluginEvent* const event,
+    PluginState* plugin_state) {
     if(event->type == EventTypeKey) {
         SceneState* scene_state = (SceneState*)plugin_state->current_scene_state;
         if(event->input.type == InputTypePress) {
@@ -171,6 +173,6 @@ void totp_scene_app_settings_deactivate(PluginState* plugin_state) {
     plugin_state->current_scene_state = NULL;
 }
 
-void totp_scene_app_settings_free(PluginState* plugin_state) {
+void totp_scene_app_settings_free(const PluginState* plugin_state) {
     UNUSED(plugin_state);
 }
\ No newline at end of file
diff --git a/applications/plugins/totp/scenes/app_settings/totp_app_settings.h b/applications/plugins/totp/scenes/app_settings/totp_app_settings.h
index b97de3390..e965d79b7 100644
--- a/applications/plugins/totp/scenes/app_settings/totp_app_settings.h
+++ b/applications/plugins/totp/scenes/app_settings/totp_app_settings.h
@@ -10,11 +10,13 @@ typedef struct {
     uint8_t current_token_index;
 } AppSettingsSceneContext;
 
-void totp_scene_app_settings_init(PluginState* plugin_state);
+void totp_scene_app_settings_init(const PluginState* plugin_state);
 void totp_scene_app_settings_activate(
     PluginState* plugin_state,
     const AppSettingsSceneContext* context);
 void totp_scene_app_settings_render(Canvas* const canvas, PluginState* plugin_state);
-bool totp_scene_app_settings_handle_event(PluginEvent* const event, PluginState* plugin_state);
+bool totp_scene_app_settings_handle_event(
+    const PluginEvent* const event,
+    PluginState* plugin_state);
 void totp_scene_app_settings_deactivate(PluginState* plugin_state);
-void totp_scene_app_settings_free(PluginState* plugin_state);
\ No newline at end of file
+void totp_scene_app_settings_free(const PluginState* plugin_state);
\ No newline at end of file
diff --git a/applications/plugins/totp/scenes/authenticate/totp_scene_authenticate.c b/applications/plugins/totp/scenes/authenticate/totp_scene_authenticate.c
index b192e2829..e0ab40086 100644
--- a/applications/plugins/totp/scenes/authenticate/totp_scene_authenticate.c
+++ b/applications/plugins/totp/scenes/authenticate/totp_scene_authenticate.c
@@ -29,7 +29,7 @@ void totp_scene_authenticate_activate(PluginState* plugin_state) {
 }
 
 void totp_scene_authenticate_render(Canvas* const canvas, PluginState* plugin_state) {
-    SceneState* scene_state = (SceneState*)plugin_state->current_scene_state;
+    const SceneState* scene_state = (SceneState*)plugin_state->current_scene_state;
 
     int v_shift = 0;
     if(scene_state->code_length > 0) {
@@ -74,7 +74,9 @@ void totp_scene_authenticate_render(Canvas* const canvas, PluginState* plugin_st
     }
 }
 
-bool totp_scene_authenticate_handle_event(PluginEvent* const event, PluginState* plugin_state) {
+bool totp_scene_authenticate_handle_event(
+    const PluginEvent* const event,
+    PluginState* plugin_state) {
     if(event->type == EventTypeKey) {
         if(event->input.type == InputTypeLong && event->input.key == InputKeyBack) {
             return false;
@@ -157,6 +159,6 @@ void totp_scene_authenticate_deactivate(PluginState* plugin_state) {
     plugin_state->current_scene_state = NULL;
 }
 
-void totp_scene_authenticate_free(PluginState* plugin_state) {
+void totp_scene_authenticate_free(const PluginState* plugin_state) {
     UNUSED(plugin_state);
 }
diff --git a/applications/plugins/totp/scenes/authenticate/totp_scene_authenticate.h b/applications/plugins/totp/scenes/authenticate/totp_scene_authenticate.h
index f1199a425..c54152f62 100644
--- a/applications/plugins/totp/scenes/authenticate/totp_scene_authenticate.h
+++ b/applications/plugins/totp/scenes/authenticate/totp_scene_authenticate.h
@@ -9,6 +9,8 @@
 void totp_scene_authenticate_init(PluginState* plugin_state);
 void totp_scene_authenticate_activate(PluginState* plugin_state);
 void totp_scene_authenticate_render(Canvas* const canvas, PluginState* plugin_state);
-bool totp_scene_authenticate_handle_event(PluginEvent* const event, PluginState* plugin_state);
+bool totp_scene_authenticate_handle_event(
+    const PluginEvent* const event,
+    PluginState* plugin_state);
 void totp_scene_authenticate_deactivate(PluginState* plugin_state);
-void totp_scene_authenticate_free(PluginState* plugin_state);
+void totp_scene_authenticate_free(const PluginState* plugin_state);
diff --git a/applications/plugins/totp/scenes/generate_token/totp_scene_generate_token.c b/applications/plugins/totp/scenes/generate_token/totp_scene_generate_token.c
index 674bcd41e..7b5f7391b 100644
--- a/applications/plugins/totp/scenes/generate_token/totp_scene_generate_token.c
+++ b/applications/plugins/totp/scenes/generate_token/totp_scene_generate_token.c
@@ -9,6 +9,7 @@
 #include "../../services/totp/totp.h"
 #include "../../services/config/config.h"
 #include "../../services/crypto/crypto.h"
+#include "../../services/crypto/memset_s.h"
 #include "../scene_director.h"
 #include "../token_menu/totp_scene_token_menu.h"
 
@@ -95,7 +96,7 @@ void update_totp_params(PluginState* const plugin_state) {
     }
 }
 
-void totp_scene_generate_token_init(PluginState* plugin_state) {
+void totp_scene_generate_token_init(const PluginState* plugin_state) {
     UNUSED(plugin_state);
 }
 
@@ -180,7 +181,7 @@ void totp_scene_generate_token_render(Canvas* const canvas, PluginState* plugin_
                              ->data);
 
         if(tokenInfo->token != NULL && tokenInfo->token_length > 0) {
-            uint8_t key_length;
+            size_t key_length;
             uint8_t* key = totp_crypto_decrypt(
                 tokenInfo->token, tokenInfo->token_length, &plugin_state->iv[0], &key_length);
 
@@ -195,7 +196,7 @@ void totp_scene_generate_token_render(Canvas* const canvas, PluginState* plugin_
                     TOKEN_LIFETIME),
                 scene_state->last_code,
                 tokenInfo->digits);
-            memset(key, 0, key_length);
+            memset_s(key, sizeof(key), 0, key_length);
             free(key);
         } else {
             i_token_to_str(0, scene_state->last_code, tokenInfo->digits);
@@ -265,7 +266,9 @@ void totp_scene_generate_token_render(Canvas* const canvas, PluginState* plugin_
     }
 }
 
-bool totp_scene_generate_token_handle_event(PluginEvent* const event, PluginState* plugin_state) {
+bool totp_scene_generate_token_handle_event(
+    const PluginEvent* const event,
+    PluginState* plugin_state) {
     if(event->type == EventTypeKey) {
         if(event->input.type == InputTypeLong && event->input.key == InputKeyBack) {
             return false;
@@ -314,11 +317,10 @@ void totp_scene_generate_token_deactivate(PluginState* plugin_state) {
     if(plugin_state->current_scene_state == NULL) return;
     SceneState* scene_state = (SceneState*)plugin_state->current_scene_state;
 
-    free(scene_state->last_code);
     free(scene_state);
     plugin_state->current_scene_state = NULL;
 }
 
-void totp_scene_generate_token_free(PluginState* plugin_state) {
+void totp_scene_generate_token_free(const PluginState* plugin_state) {
     UNUSED(plugin_state);
 }
diff --git a/applications/plugins/totp/scenes/generate_token/totp_scene_generate_token.h b/applications/plugins/totp/scenes/generate_token/totp_scene_generate_token.h
index 1284c7b41..e4ca818b6 100644
--- a/applications/plugins/totp/scenes/generate_token/totp_scene_generate_token.h
+++ b/applications/plugins/totp/scenes/generate_token/totp_scene_generate_token.h
@@ -10,11 +10,13 @@ typedef struct {
     uint8_t current_token_index;
 } GenerateTokenSceneContext;
 
-void totp_scene_generate_token_init(PluginState* plugin_state);
+void totp_scene_generate_token_init(const PluginState* plugin_state);
 void totp_scene_generate_token_activate(
     PluginState* plugin_state,
     const GenerateTokenSceneContext* context);
 void totp_scene_generate_token_render(Canvas* const canvas, PluginState* plugin_state);
-bool totp_scene_generate_token_handle_event(PluginEvent* const event, PluginState* plugin_state);
+bool totp_scene_generate_token_handle_event(
+    const PluginEvent* const event,
+    PluginState* plugin_state);
 void totp_scene_generate_token_deactivate(PluginState* plugin_state);
-void totp_scene_generate_token_free(PluginState* plugin_state);
+void totp_scene_generate_token_free(const PluginState* plugin_state);
diff --git a/applications/plugins/totp/scenes/scene_director.c b/applications/plugins/totp/scenes/scene_director.c
index d4ddd1768..5265123f5 100644
--- a/applications/plugins/totp/scenes/scene_director.c
+++ b/applications/plugins/totp/scenes/scene_director.c
@@ -88,7 +88,7 @@ void totp_scene_director_render(Canvas* const canvas, PluginState* const plugin_
     }
 }
 
-void totp_scene_director_dispose(PluginState* const plugin_state) {
+void totp_scene_director_dispose(const PluginState* const plugin_state) {
     totp_scene_generate_token_free(plugin_state);
     totp_scene_authenticate_free(plugin_state);
     totp_scene_add_new_token_free(plugin_state);
diff --git a/applications/plugins/totp/scenes/scene_director.h b/applications/plugins/totp/scenes/scene_director.h
index 3c25afff6..cc06029d3 100644
--- a/applications/plugins/totp/scenes/scene_director.h
+++ b/applications/plugins/totp/scenes/scene_director.h
@@ -12,5 +12,5 @@ void totp_scene_director_activate_scene(
 void totp_scene_director_deactivate_active_scene(PluginState* const plugin_state);
 void totp_scene_director_init_scenes(PluginState* const plugin_state);
 void totp_scene_director_render(Canvas* const canvas, PluginState* const plugin_state);
-void totp_scene_director_dispose(PluginState* const plugin_state);
+void totp_scene_director_dispose(const PluginState* const plugin_state);
 bool totp_scene_director_handle_event(PluginEvent* const event, PluginState* const plugin_state);
diff --git a/applications/plugins/totp/scenes/token_menu/totp_scene_token_menu.c b/applications/plugins/totp/scenes/token_menu/totp_scene_token_menu.c
index 22c37dc2c..c4286ded9 100644
--- a/applications/plugins/totp/scenes/token_menu/totp_scene_token_menu.c
+++ b/applications/plugins/totp/scenes/token_menu/totp_scene_token_menu.c
@@ -21,7 +21,7 @@ typedef struct {
     int16_t current_token_index;
 } SceneState;
 
-void totp_scene_token_menu_init(PluginState* plugin_state) {
+void totp_scene_token_menu_init(const PluginState* plugin_state) {
     UNUSED(plugin_state);
 }
 
@@ -38,7 +38,7 @@ void totp_scene_token_menu_activate(
 }
 
 void totp_scene_token_menu_render(Canvas* const canvas, PluginState* plugin_state) {
-    SceneState* scene_state = (SceneState*)plugin_state->current_scene_state;
+    const SceneState* scene_state = (SceneState*)plugin_state->current_scene_state;
     if(scene_state->current_token_index < 0) {
         ui_control_button_render(
             canvas,
@@ -84,7 +84,7 @@ void totp_scene_token_menu_render(Canvas* const canvas, PluginState* plugin_stat
     }
 }
 
-bool totp_scene_token_menu_handle_event(PluginEvent* const event, PluginState* plugin_state) {
+bool totp_scene_token_menu_handle_event(const PluginEvent* const event, PluginState* plugin_state) {
     if(event->type == EventTypeKey) {
         SceneState* scene_state = (SceneState*)plugin_state->current_scene_state;
         if(event->input.type == InputTypePress) {
@@ -192,6 +192,6 @@ void totp_scene_token_menu_deactivate(PluginState* plugin_state) {
     plugin_state->current_scene_state = NULL;
 }
 
-void totp_scene_token_menu_free(PluginState* plugin_state) {
+void totp_scene_token_menu_free(const PluginState* plugin_state) {
     UNUSED(plugin_state);
 }
diff --git a/applications/plugins/totp/scenes/token_menu/totp_scene_token_menu.h b/applications/plugins/totp/scenes/token_menu/totp_scene_token_menu.h
index 0b117cb25..52e33e728 100644
--- a/applications/plugins/totp/scenes/token_menu/totp_scene_token_menu.h
+++ b/applications/plugins/totp/scenes/token_menu/totp_scene_token_menu.h
@@ -10,11 +10,11 @@ typedef struct {
     uint8_t current_token_index;
 } TokenMenuSceneContext;
 
-void totp_scene_token_menu_init(PluginState* plugin_state);
+void totp_scene_token_menu_init(const PluginState* plugin_state);
 void totp_scene_token_menu_activate(
     PluginState* plugin_state,
     const TokenMenuSceneContext* context);
 void totp_scene_token_menu_render(Canvas* const canvas, PluginState* plugin_state);
-bool totp_scene_token_menu_handle_event(PluginEvent* const event, PluginState* plugin_state);
+bool totp_scene_token_menu_handle_event(const PluginEvent* const event, PluginState* plugin_state);
 void totp_scene_token_menu_deactivate(PluginState* plugin_state);
-void totp_scene_token_menu_free(PluginState* plugin_state);
+void totp_scene_token_menu_free(const PluginState* plugin_state);
diff --git a/applications/plugins/totp/services/cli/cli.c b/applications/plugins/totp/services/cli/cli.c
index 3a7afdd96..76e58a02d 100644
--- a/applications/plugins/totp/services/cli/cli.c
+++ b/applications/plugins/totp/services/cli/cli.c
@@ -9,7 +9,7 @@
 #include "commands/timezone/timezone.h"
 #include "commands/help/help.h"
 
-static void totp_cli_print_unknown_command(FuriString* unknown_command) {
+static void totp_cli_print_unknown_command(const FuriString* unknown_command) {
     TOTP_CLI_PRINTF(
         "Command \"%s\" is unknown. Use \"" TOTP_CLI_COMMAND_HELP
         "\" command to get list of available commands.",
diff --git a/applications/plugins/totp/services/cli/cli_helpers.c b/applications/plugins/totp/services/cli/cli_helpers.c
index 81a1e4b77..4a0b8b352 100644
--- a/applications/plugins/totp/services/cli/cli_helpers.c
+++ b/applications/plugins/totp/services/cli/cli_helpers.c
@@ -1,7 +1,7 @@
 #include "cli_helpers.h"
 #include <cli/cli.h>
 
-bool totp_cli_ensure_authenticated(PluginState* plugin_state, Cli* cli) {
+bool totp_cli_ensure_authenticated(const PluginState* plugin_state, Cli* cli) {
     if(plugin_state->current_scene == TotpSceneAuthentication) {
         TOTP_CLI_PRINTF("Pleases enter PIN on your flipper device\r\n");
 
@@ -11,7 +11,6 @@ bool totp_cli_ensure_authenticated(PluginState* plugin_state, Cli* cli) {
         }
 
         TOTP_CLI_DELETE_LAST_LINE();
-        fflush(stdout);
 
         if(plugin_state->current_scene == TotpSceneAuthentication) {
             return false;
diff --git a/applications/plugins/totp/services/cli/cli_helpers.h b/applications/plugins/totp/services/cli/cli_helpers.h
index 216925e50..9b19f926b 100644
--- a/applications/plugins/totp/services/cli/cli_helpers.h
+++ b/applications/plugins/totp/services/cli/cli_helpers.h
@@ -13,16 +13,28 @@
 #define DOCOPT_OPTIONS "[options]"
 #define DOCOPT_DEFAULT(val) "[default: " val "]"
 
-#define TOTP_CLI_PRINTF(format, ...)                                 \
-    _Pragma(STRINGIFY(GCC diagnostic push));                         \
-    _Pragma(STRINGIFY(GCC diagnostic ignored "-Wdouble-promotion")); \
-    printf(format, ##__VA_ARGS__);                                   \
-    _Pragma(STRINGIFY(GCC diagnostic pop));
+#define TOTP_CLI_PRINTF(format, ...)                                        \
+    do {                                                                    \
+        _Pragma(STRINGIFY(GCC diagnostic push))                             \
+            _Pragma(STRINGIFY(GCC diagnostic ignored "-Wdouble-promotion")) \
+                printf(format, ##__VA_ARGS__);                              \
+        _Pragma(STRINGIFY(GCC diagnostic pop))                              \
+    } while(false)
+
+#define TOTP_CLI_DELETE_LAST_LINE()    \
+    TOTP_CLI_PRINTF("\033[A\33[2K\r"); \
+    fflush(stdout)
+
+#define TOTP_CLI_DELETE_CURRENT_LINE() \
+    TOTP_CLI_PRINTF("\33[2K\r");       \
+    fflush(stdout)
+
+#define TOTP_CLI_DELETE_LAST_CHAR() \
+    TOTP_CLI_PRINTF("\b \b");       \
+    fflush(stdout)
 
-#define TOTP_CLI_DELETE_LAST_LINE() TOTP_CLI_PRINTF("\033[A\33[2K\r")
-#define TOTP_CLI_DELETE_CURRENT_LINE() TOTP_CLI_PRINTF("\33[2K\r")
 #define TOTP_CLI_PRINT_INVALID_ARGUMENTS() \
     TOTP_CLI_PRINTF(                       \
         "Invalid command arguments. use \"help\" command to get list of available commands")
 
-bool totp_cli_ensure_authenticated(PluginState* plugin_state, Cli* cli);
+bool totp_cli_ensure_authenticated(const PluginState* plugin_state, Cli* cli);
diff --git a/applications/plugins/totp/services/cli/commands/add/add.c b/applications/plugins/totp/services/cli/commands/add/add.c
index 41ff5b860..c1ce42617 100644
--- a/applications/plugins/totp/services/cli/commands/add/add.c
+++ b/applications/plugins/totp/services/cli/commands/add/add.c
@@ -14,7 +14,7 @@
 #define TOTP_CLI_COMMAND_ADD_ARG_DIGITS_PREFIX "-d"
 #define TOTP_CLI_COMMAND_ADD_ARG_UNSECURE_PREFIX "-u"
 
-static bool token_info_set_digits_from_str(TokenInfo* token_info, FuriString* str) {
+static bool token_info_set_digits_from_str(TokenInfo* token_info, const FuriString* str) {
     switch(furi_string_get_char(str, 0)) {
     case '6':
         token_info->digits = TOTP_6_DIGITS;
@@ -27,7 +27,7 @@ static bool token_info_set_digits_from_str(TokenInfo* token_info, FuriString* st
     return false;
 }
 
-static bool token_info_set_algo_from_str(TokenInfo* token_info, FuriString* str) {
+static bool token_info_set_algo_from_str(TokenInfo* token_info, const FuriString* str) {
     if(furi_string_cmpi_str(str, TOTP_CONFIG_TOKEN_ALGO_SHA1_NAME) == 0) {
         token_info->algo = SHA1;
         return true;
@@ -79,10 +79,16 @@ void totp_cli_command_add_docopt_options() {
         TOTP_CLI_COMMAND_ADD_ARG_UNSECURE_PREFIX) "             Show console user input as-is without masking\r\n");
 }
 
+static void furi_string_secure_free(FuriString* str) {
+    for(long i = furi_string_size(str) - 1; i >= 0; i--) {
+        furi_string_set_char(str, i, '\0');
+    }
+
+    furi_string_free(str);
+}
+
 void totp_cli_command_add_handle(PluginState* plugin_state, FuriString* args, Cli* cli) {
     FuriString* temp_str = furi_string_alloc();
-    const char* temp_cstr;
-
     TokenInfo* token_info = token_info_alloc();
 
     // Reading token name
@@ -93,9 +99,9 @@ void totp_cli_command_add_handle(PluginState* plugin_state, FuriString* args, Cl
         return;
     }
 
-    temp_cstr = furi_string_get_cstr(temp_str);
-    token_info->name = malloc(strlen(temp_cstr) + 1);
-    strcpy(token_info->name, temp_cstr);
+    size_t temp_cstr_len = furi_string_size(temp_str);
+    token_info->name = malloc(temp_cstr_len + 1);
+    strlcpy(token_info->name, furi_string_get_cstr(temp_str), temp_cstr_len + 1);
 
     // Read optional arguments
     bool mask_user_input = true;
@@ -146,13 +152,15 @@ void totp_cli_command_add_handle(PluginState* plugin_state, FuriString* args, Cl
     uint8_t c;
     while(cli_read(cli, &c, 1) == 1) {
         if(c == CliSymbolAsciiEsc) {
+            // Some keys generating escape-sequences
+            // We need to ignore them as we case about alpha-numerics only
             uint8_t c2;
             cli_read_timeout(cli, &c2, 1, 0);
             cli_read_timeout(cli, &c2, 1, 0);
         } else if(c == CliSymbolAsciiETX) {
             TOTP_CLI_DELETE_CURRENT_LINE();
-            TOTP_CLI_PRINTF("Cancelled by user");
-            furi_string_free(temp_str);
+            TOTP_CLI_PRINTF("Cancelled by user\r\n");
+            furi_string_secure_free(temp_str);
             token_info_free(token_info);
             return;
         } else if((c >= '0' && c <= '9') || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
@@ -166,8 +174,7 @@ void totp_cli_command_add_handle(PluginState* plugin_state, FuriString* args, Cl
         } else if(c == CliSymbolAsciiBackspace || c == CliSymbolAsciiDel) {
             size_t temp_str_size = furi_string_size(temp_str);
             if(temp_str_size > 0) {
-                TOTP_CLI_PRINTF("\b \b");
-                fflush(stdout);
+                TOTP_CLI_DELETE_LAST_CHAR();
                 furi_string_left(temp_str, temp_str_size - 1);
             }
         } else if(c == CliSymbolAsciiCR) {
@@ -176,25 +183,26 @@ void totp_cli_command_add_handle(PluginState* plugin_state, FuriString* args, Cl
         }
     }
 
-    temp_cstr = furi_string_get_cstr(temp_str);
-
     TOTP_CLI_DELETE_LAST_LINE();
 
     if(!totp_cli_ensure_authenticated(plugin_state, cli)) {
-        furi_string_free(temp_str);
+        furi_string_secure_free(temp_str);
         token_info_free(token_info);
         return;
     }
 
-    if(!token_info_set_secret(token_info, temp_cstr, strlen(temp_cstr), plugin_state->iv)) {
+    if(!token_info_set_secret(
+           token_info,
+           furi_string_get_cstr(temp_str),
+           furi_string_size(temp_str),
+           plugin_state->iv)) {
         TOTP_CLI_PRINTF("Token secret seems to be invalid and can not be parsed\r\n");
-        furi_string_free(temp_str);
+        furi_string_secure_free(temp_str);
         token_info_free(token_info);
         return;
     }
 
-    furi_string_reset(temp_str);
-    furi_string_free(temp_str);
+    furi_string_secure_free(temp_str);
 
     bool load_generate_token_scene = false;
     if(plugin_state->current_scene == TotpSceneGenerateToken) {
diff --git a/applications/plugins/totp/services/config/config.c b/applications/plugins/totp/services/config/config.c
index 0854d79ad..bb6cffde0 100644
--- a/applications/plugins/totp/services/config/config.c
+++ b/applications/plugins/totp/services/config/config.c
@@ -10,7 +10,7 @@
 #define CONFIG_FILE_PATH CONFIG_FILE_DIRECTORY_PATH "/totp.conf"
 #define CONFIG_FILE_BACKUP_PATH CONFIG_FILE_PATH ".backup"
 
-static uint8_t token_info_get_digits_as_int(TokenInfo* token_info) {
+static uint8_t token_info_get_digits_as_int(const TokenInfo* token_info) {
     switch(token_info->digits) {
     case TOTP_6_DIGITS:
         return 6;
@@ -32,7 +32,7 @@ static void token_info_set_digits_from_int(TokenInfo* token_info, uint8_t digits
     }
 }
 
-static char* token_info_get_algo_as_cstr(TokenInfo* token_info) {
+static char* token_info_get_algo_as_cstr(const TokenInfo* token_info) {
     switch(token_info->algo) {
     case SHA1:
         return TOTP_CONFIG_TOKEN_ALGO_SHA1_NAME;
@@ -45,7 +45,7 @@ static char* token_info_get_algo_as_cstr(TokenInfo* token_info) {
     return NULL;
 }
 
-static void token_info_set_algo_from_str(TokenInfo* token_info, FuriString* str) {
+static void token_info_set_algo_from_str(TokenInfo* token_info, const FuriString* str) {
     if(furi_string_cmpi_str(str, TOTP_CONFIG_TOKEN_ALGO_SHA1_NAME) == 0) {
         token_info->algo = SHA1;
     } else if(furi_string_cmpi_str(str, TOTP_CONFIG_TOKEN_ALGO_SHA256_NAME) == 0) {
@@ -152,7 +152,7 @@ FlipperFormat* totp_open_config_file(Storage* storage) {
     return fff_data_file;
 }
 
-void totp_config_file_save_new_token_i(FlipperFormat* file, TokenInfo* token_info) {
+void totp_config_file_save_new_token_i(FlipperFormat* file, const TokenInfo* token_info) {
     flipper_format_seek_to_end(file);
     flipper_format_write_string_cstr(file, TOTP_CONFIG_KEY_TOKEN_NAME, token_info->name);
     bool token_is_valid = token_info->token != NULL && token_info->token_length > 0;
@@ -170,7 +170,7 @@ void totp_config_file_save_new_token_i(FlipperFormat* file, TokenInfo* token_inf
     flipper_format_write_uint32(file, TOTP_CONFIG_KEY_TOKEN_DIGITS, &digits_count_as_uint32, 1);
 }
 
-void totp_config_file_save_new_token(TokenInfo* token_info) {
+void totp_config_file_save_new_token(const TokenInfo* token_info) {
     Storage* cfg_storage = totp_open_storage();
     FlipperFormat* file = totp_open_config_file(cfg_storage);
 
@@ -190,7 +190,7 @@ void totp_config_file_update_timezone_offset(float new_timezone_offset) {
     totp_close_storage();
 }
 
-void totp_full_save_config_file(PluginState* const plugin_state) {
+void totp_full_save_config_file(const PluginState* const plugin_state) {
     Storage* storage = totp_open_storage();
     FlipperFormat* fff_data_file = flipper_format_file_alloc(storage);
 
@@ -209,7 +209,7 @@ void totp_full_save_config_file(PluginState* const plugin_state) {
     flipper_format_write_bool(fff_data_file, TOTP_CONFIG_KEY_PINSET, &plugin_state->pin_set, 1);
     ListNode* node = plugin_state->tokens_list;
     while(node != NULL) {
-        TokenInfo* token_info = node->data;
+        const TokenInfo* token_info = node->data;
         totp_config_file_save_new_token_i(fff_data_file, token_info);
         node = node->next;
     }
@@ -343,9 +343,9 @@ TokenLoadingResult totp_config_file_load_tokens(PluginState* const plugin_state)
 
         TokenInfo* tokenInfo = token_info_alloc();
 
-        const char* temp_cstr = furi_string_get_cstr(temp_str);
-        tokenInfo->name = (char*)malloc(strlen(temp_cstr) + 1);
-        strcpy(tokenInfo->name, temp_cstr);
+        size_t temp_cstr_len = furi_string_size(temp_str);
+        tokenInfo->name = (char*)malloc(temp_cstr_len + 1);
+        strlcpy(tokenInfo->name, furi_string_get_cstr(temp_str), temp_cstr_len + 1);
 
         uint32_t secret_bytes_count;
         if(!flipper_format_get_value_count(
@@ -355,9 +355,11 @@ TokenLoadingResult totp_config_file_load_tokens(PluginState* const plugin_state)
 
         if(secret_bytes_count == 1) { // Plain secret key
             if(flipper_format_read_string(fff_data_file, TOTP_CONFIG_KEY_TOKEN_SECRET, temp_str)) {
-                temp_cstr = furi_string_get_cstr(temp_str);
                 if(token_info_set_secret(
-                       tokenInfo, temp_cstr, strlen(temp_cstr), &plugin_state->iv[0])) {
+                       tokenInfo,
+                       furi_string_get_cstr(temp_str),
+                       furi_string_size(temp_str),
+                       &plugin_state->iv[0])) {
                     FURI_LOG_W(LOGGING_TAG, "Token \"%s\" has plain secret", tokenInfo->name);
                 } else {
                     tokenInfo->token = NULL;
diff --git a/applications/plugins/totp/services/config/config.h b/applications/plugins/totp/services/config/config.h
index 76cb40b2c..d452ad4b3 100644
--- a/applications/plugins/totp/services/config/config.h
+++ b/applications/plugins/totp/services/config/config.h
@@ -16,8 +16,8 @@ Storage* totp_open_storage();
 void totp_close_storage();
 FlipperFormat* totp_open_config_file(Storage* storage);
 void totp_close_config_file(FlipperFormat* file);
-void totp_full_save_config_file(PluginState* const plugin_state);
+void totp_full_save_config_file(const PluginState* const plugin_state);
 void totp_config_file_load_base(PluginState* const plugin_state);
 TokenLoadingResult totp_config_file_load_tokens(PluginState* const plugin_state);
-void totp_config_file_save_new_token(TokenInfo* token_info);
+void totp_config_file_save_new_token(const TokenInfo* token_info);
 void totp_config_file_update_timezone_offset(float new_timezone_offset);
diff --git a/applications/plugins/totp/services/crypto/crypto.c b/applications/plugins/totp/services/crypto/crypto.c
index ade2f9f49..79e41e6fd 100644
--- a/applications/plugins/totp/services/crypto/crypto.c
+++ b/applications/plugins/totp/services/crypto/crypto.c
@@ -3,6 +3,7 @@
 #include <furi_hal.h>
 #include "../config/config.h"
 #include "../../types/common.h"
+#include "memset_s.h"
 
 #define CRYPTO_KEY_SLOT 2
 #define CRYPTO_VERIFY_KEY "FFF_Crypto_pass"
@@ -11,13 +12,13 @@
 
 uint8_t* totp_crypto_encrypt(
     const uint8_t* plain_data,
-    const uint8_t plain_data_length,
+    const size_t plain_data_length,
     const uint8_t* iv,
-    uint8_t* encrypted_data_length) {
+    size_t* encrypted_data_length) {
     uint8_t* encrypted_data;
     size_t remain = plain_data_length % CRYPTO_ALIGNMENT_FACTOR;
     if(remain) {
-        uint8_t plain_data_aligned_length = plain_data_length - remain + CRYPTO_ALIGNMENT_FACTOR;
+        size_t plain_data_aligned_length = plain_data_length - remain + CRYPTO_ALIGNMENT_FACTOR;
         uint8_t* plain_data_aligned = malloc(plain_data_aligned_length);
         memset(plain_data_aligned, 0, plain_data_aligned_length);
         memcpy(plain_data_aligned, plain_data, plain_data_length);
@@ -29,7 +30,7 @@ uint8_t* totp_crypto_encrypt(
         furi_hal_crypto_encrypt(plain_data_aligned, encrypted_data, plain_data_aligned_length);
         furi_hal_crypto_store_unload_key(CRYPTO_KEY_SLOT);
 
-        memset(plain_data_aligned, 0, plain_data_aligned_length);
+        memset_s(plain_data_aligned, sizeof(plain_data_aligned), 0, plain_data_aligned_length);
         free(plain_data_aligned);
     } else {
         encrypted_data = malloc(plain_data_length);
@@ -45,9 +46,9 @@ uint8_t* totp_crypto_encrypt(
 
 uint8_t* totp_crypto_decrypt(
     const uint8_t* encrypted_data,
-    const uint8_t encrypted_data_length,
+    const size_t encrypted_data_length,
     const uint8_t* iv,
-    uint8_t* decrypted_data_length) {
+    size_t* decrypted_data_length) {
     *decrypted_data_length = encrypted_data_length;
     uint8_t* decrypted_data = malloc(*decrypted_data_length);
     furi_hal_crypto_store_load_key(CRYPTO_KEY_SLOT, iv);
@@ -56,7 +57,7 @@ uint8_t* totp_crypto_decrypt(
     return decrypted_data;
 }
 
-void totp_crypto_seed_iv(PluginState* plugin_state, uint8_t* pin, uint8_t pin_length) {
+void totp_crypto_seed_iv(PluginState* plugin_state, const uint8_t* pin, uint8_t pin_length) {
     if(plugin_state->crypto_verify_data == NULL) {
         FURI_LOG_D(LOGGING_TAG, "Generating new IV");
         furi_hal_random_fill_buf(&plugin_state->base_iv[0], TOTP_IV_SIZE);
@@ -118,8 +119,8 @@ void totp_crypto_seed_iv(PluginState* plugin_state, uint8_t* pin, uint8_t pin_le
 }
 
 bool totp_crypto_verify_key(const PluginState* plugin_state) {
-    uint8_t decrypted_key_length;
-    uint8_t* decrypted_key = totp_crypto_decrypt(
+    size_t decrypted_key_length;
+    const uint8_t* decrypted_key = totp_crypto_decrypt(
         plugin_state->crypto_verify_data,
         plugin_state->crypto_verify_data_length,
         &plugin_state->iv[0],
diff --git a/applications/plugins/totp/services/crypto/crypto.h b/applications/plugins/totp/services/crypto/crypto.h
index 9fc319659..f0a28f798 100644
--- a/applications/plugins/totp/services/crypto/crypto.h
+++ b/applications/plugins/totp/services/crypto/crypto.h
@@ -4,13 +4,13 @@
 
 uint8_t* totp_crypto_encrypt(
     const uint8_t* plain_data,
-    const uint8_t plain_data_length,
+    const size_t plain_data_length,
     const uint8_t* iv,
-    uint8_t* encrypted_data_length);
+    size_t* encrypted_data_length);
 uint8_t* totp_crypto_decrypt(
     const uint8_t* encrypted_data,
-    const uint8_t encrypted_data_length,
+    const size_t encrypted_data_length,
     const uint8_t* iv,
-    uint8_t* decrypted_data_length);
-void totp_crypto_seed_iv(PluginState* plugin_state, uint8_t* pin, uint8_t pin_length);
+    size_t* decrypted_data_length);
+void totp_crypto_seed_iv(PluginState* plugin_state, const uint8_t* pin, uint8_t pin_length);
 bool totp_crypto_verify_key(const PluginState* plugin_state);
\ No newline at end of file
diff --git a/applications/plugins/totp/services/crypto/memset_s.c b/applications/plugins/totp/services/crypto/memset_s.c
new file mode 100644
index 000000000..81c285c0d
--- /dev/null
+++ b/applications/plugins/totp/services/crypto/memset_s.c
@@ -0,0 +1,22 @@
+#include "memset_s.h"
+
+#define RSIZE_MAX 0x7fffffffffffffffUL
+
+errno_t memset_s(void* s, rsize_t smax, int c, rsize_t n) {
+    if(!s || smax > RSIZE_MAX) {
+        return EINVAL;
+    }
+
+    errno_t violation_present = 0;
+    if(n > smax) {
+        n = smax;
+        violation_present = EINVAL;
+    }
+
+    volatile unsigned char* v = s;
+    for(rsize_t i = 0u; i < n; ++i) {
+        *v++ = (unsigned char)c;
+    }
+
+    return violation_present;
+}
\ No newline at end of file
diff --git a/applications/plugins/totp/services/crypto/memset_s.h b/applications/plugins/totp/services/crypto/memset_s.h
new file mode 100644
index 000000000..2889e23b2
--- /dev/null
+++ b/applications/plugins/totp/services/crypto/memset_s.h
@@ -0,0 +1,16 @@
+#pragma once
+
+#include <errno.h>
+#include <stdint.h>
+#include <string.h>
+
+#ifndef _RSIZE_T_DECLARED
+typedef uint64_t rsize_t;
+#define _RSIZE_T_DECLARED
+#endif
+#ifndef _ERRNOT_DECLARED
+typedef int16_t errno_t;
+#define _ERRNOT_DECLARED
+#endif
+
+errno_t memset_s(void* s, rsize_t smax, int c, rsize_t n);
\ No newline at end of file
diff --git a/applications/plugins/totp/services/totp/totp.c b/applications/plugins/totp/services/totp/totp.c
index 90e49367d..68531e171 100644
--- a/applications/plugins/totp/services/totp/totp.c
+++ b/applications/plugins/totp/services/totp/totp.c
@@ -42,14 +42,14 @@ uint32_t otp_generate(
     TOTP_ALGO algo,
     uint8_t digits,
     const uint8_t* plain_secret,
-    uint8_t plain_secret_length,
+    size_t plain_secret_length,
     uint64_t input) {
     uint8_t* hmac = malloc(64);
     memset(hmac, 0, 64);
 
     uint64_t input_swapped = swap_uint64(input);
 
-    int hmac_len = (*(algo))(plain_secret, plain_secret_length, (uint8_t*)&input_swapped, 8, hmac);
+    int hmac_len = (*algo)(plain_secret, plain_secret_length, (uint8_t*)&input_swapped, 8, hmac);
     if(hmac_len == 0) {
         free(hmac);
         return OTP_ERROR;
@@ -80,7 +80,7 @@ uint32_t totp_at(
     TOTP_ALGO algo,
     uint8_t digits,
     const uint8_t* plain_secret,
-    uint8_t plain_secret_length,
+    size_t plain_secret_length,
     uint64_t for_time,
     float timezone,
     uint8_t interval) {
@@ -96,9 +96,9 @@ uint32_t totp_at(
 
 static int totp_algo_sha1(
     const uint8_t* key,
-    uint8_t key_length,
+    size_t key_length,
     const uint8_t* input,
-    uint8_t input_length,
+    size_t input_length,
     uint8_t* output) {
     hmac_sha1(key, key_length, input, input_length, output);
     return HMAC_SHA1_RESULT_SIZE;
@@ -106,9 +106,9 @@ static int totp_algo_sha1(
 
 static int totp_algo_sha256(
     const uint8_t* key,
-    uint8_t key_length,
+    size_t key_length,
     const uint8_t* input,
-    uint8_t input_length,
+    size_t input_length,
     uint8_t* output) {
     hmac_sha256(key, key_length, input, input_length, output);
     return HMAC_SHA256_RESULT_SIZE;
@@ -116,9 +116,9 @@ static int totp_algo_sha256(
 
 static int totp_algo_sha512(
     const uint8_t* key,
-    uint8_t key_length,
+    size_t key_length,
     const uint8_t* input,
-    uint8_t input_length,
+    size_t input_length,
     uint8_t* output) {
     hmac_sha512(key, key_length, input, input_length, output);
     return HMAC_SHA512_RESULT_SIZE;
diff --git a/applications/plugins/totp/services/totp/totp.h b/applications/plugins/totp/services/totp/totp.h
index 31e70e01b..431ca11aa 100644
--- a/applications/plugins/totp/services/totp/totp.h
+++ b/applications/plugins/totp/services/totp/totp.h
@@ -17,9 +17,9 @@
 */
 typedef int (*TOTP_ALGO)(
     const uint8_t* key,
-    uint8_t key_length,
+    size_t key_length,
     const uint8_t* input,
-    uint8_t input_length,
+    size_t input_length,
     uint8_t* output);
 
 /*
@@ -47,7 +47,7 @@ uint32_t totp_at(
     TOTP_ALGO algo,
     uint8_t digits,
     const uint8_t* plain_secret,
-    uint8_t plain_secret_length,
+    size_t plain_secret_length,
     uint64_t for_time,
     float timezone,
     uint8_t interval);
diff --git a/applications/plugins/totp/services/ui/icons.h b/applications/plugins/totp/services/ui/icons.h
index a9139403f..2ce25a898 100644
--- a/applications/plugins/totp/services/ui/icons.h
+++ b/applications/plugins/totp/services/ui/icons.h
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <totp_icons.h>
 #include <inttypes.h>
 
 #define ICON_ARROW_LEFT_8x9_WIDTH 8
diff --git a/applications/plugins/totp/services/ui/ui_controls.c b/applications/plugins/totp/services/ui/ui_controls.c
index 7f6a4dd4d..b01036f2e 100644
--- a/applications/plugins/totp/services/ui/ui_controls.c
+++ b/applications/plugins/totp/services/ui/ui_controls.c
@@ -5,7 +5,11 @@
 #define TEXT_BOX_HEIGHT 13
 #define TEXT_BOX_MARGIN 4
 
-void ui_control_text_box_render(Canvas* const canvas, int8_t y, char* text, bool is_selected) {
+void ui_control_text_box_render(
+    Canvas* const canvas,
+    int16_t y,
+    const char* text,
+    bool is_selected) {
     if(y < -TEXT_BOX_HEIGHT) {
         return;
     }
@@ -44,7 +48,7 @@ void ui_control_select_render(
     int16_t x,
     int16_t y,
     uint8_t width,
-    char* text,
+    const char* text,
     bool is_selected) {
     if(y < -TEXT_BOX_HEIGHT) {
         return;
@@ -99,7 +103,7 @@ void ui_control_button_render(
     int16_t y,
     uint8_t width,
     uint8_t height,
-    char* text,
+    const char* text,
     bool is_selected) {
     if(y < -height) {
         return;
diff --git a/applications/plugins/totp/services/ui/ui_controls.h b/applications/plugins/totp/services/ui/ui_controls.h
index e86b3e5d9..ef3af5f55 100644
--- a/applications/plugins/totp/services/ui/ui_controls.h
+++ b/applications/plugins/totp/services/ui/ui_controls.h
@@ -3,19 +3,23 @@
 #include <inttypes.h>
 #include <gui/gui.h>
 
-void ui_control_text_box_render(Canvas* const canvas, int8_t y, char* text, bool is_selected);
+void ui_control_text_box_render(
+    Canvas* const canvas,
+    int16_t y,
+    const char* text,
+    bool is_selected);
 void ui_control_button_render(
     Canvas* const canvas,
     int16_t x,
     int16_t y,
     uint8_t width,
     uint8_t height,
-    char* text,
+    const char* text,
     bool is_selected);
 void ui_control_select_render(
     Canvas* const canvas,
     int16_t x,
     int16_t y,
     uint8_t width,
-    char* text,
+    const char* text,
     bool is_selected);
diff --git a/applications/plugins/totp/totp_app.c b/applications/plugins/totp/totp_app.c
index ede8416b6..f296a734b 100644
--- a/applications/plugins/totp/totp_app.c
+++ b/applications/plugins/totp/totp_app.c
@@ -154,22 +154,22 @@ int32_t totp_app() {
         if(plugin_state->changing_scene) continue;
         FuriStatus event_status = furi_message_queue_get(event_queue, &event, 100);
 
-        PluginState* plugin_state = acquire_mutex_block(&state_mutex);
+        PluginState* plugin_state_m = acquire_mutex_block(&state_mutex);
 
         if(event_status == FuriStatusOk) {
             if(event.type == EventTypeKey) {
                 last_user_interaction_time = furi_get_tick();
             }
 
-            processing = totp_scene_director_handle_event(&event, plugin_state);
+            processing = totp_scene_director_handle_event(&event, plugin_state_m);
         } else if(
-            plugin_state->pin_set && plugin_state->current_scene != TotpSceneAuthentication &&
+            plugin_state_m->pin_set && plugin_state_m->current_scene != TotpSceneAuthentication &&
             furi_get_tick() - last_user_interaction_time > IDLE_TIMEOUT) {
-            totp_scene_director_activate_scene(plugin_state, TotpSceneAuthentication, NULL);
+            totp_scene_director_activate_scene(plugin_state_m, TotpSceneAuthentication, NULL);
         }
 
         view_port_update(view_port);
-        release_mutex(&state_mutex, plugin_state);
+        release_mutex(&state_mutex, plugin_state_m);
     }
 
     view_port_enabled_set(view_port, false);
diff --git a/applications/plugins/totp/types/plugin_state.h b/applications/plugins/totp/types/plugin_state.h
index 98afe53cf..26e7e244b 100644
--- a/applications/plugins/totp/types/plugin_state.h
+++ b/applications/plugins/totp/types/plugin_state.h
@@ -22,7 +22,7 @@ typedef struct {
     uint8_t tokens_count;
 
     uint8_t* crypto_verify_data;
-    uint8_t crypto_verify_data_length;
+    size_t crypto_verify_data_length;
     bool pin_set;
     uint8_t iv[TOTP_IV_SIZE];
     uint8_t base_iv[TOTP_IV_SIZE];
diff --git a/applications/plugins/totp/types/token_info.c b/applications/plugins/totp/types/token_info.c
index 09ad1230a..2a37c4d44 100644
--- a/applications/plugins/totp/types/token_info.c
+++ b/applications/plugins/totp/types/token_info.c
@@ -5,6 +5,7 @@
 #include "common.h"
 #include "../services/base32/base32.h"
 #include "../services/crypto/crypto.h"
+#include "../services/crypto/memset_s.h"
 
 TokenInfo* token_info_alloc() {
     TokenInfo* tokenInfo = malloc(sizeof(TokenInfo));
@@ -23,7 +24,7 @@ void token_info_free(TokenInfo* token_info) {
 bool token_info_set_secret(
     TokenInfo* token_info,
     const char* base32_token_secret,
-    uint8_t token_secret_length,
+    size_t token_secret_length,
     uint8_t* iv) {
     uint8_t* plain_secret = malloc(token_secret_length);
     int plain_secret_length =
@@ -37,7 +38,7 @@ bool token_info_set_secret(
         result = false;
     }
 
-    memset(plain_secret, 0, token_secret_length);
+    memset_s(plain_secret, sizeof(plain_secret), 0, token_secret_length);
     free(plain_secret);
     return result;
 }
diff --git a/applications/plugins/totp/types/token_info.h b/applications/plugins/totp/types/token_info.h
index e40c6e9bf..3d0f0ec61 100644
--- a/applications/plugins/totp/types/token_info.h
+++ b/applications/plugins/totp/types/token_info.h
@@ -8,7 +8,7 @@ typedef enum { TOTP_6_DIGITS, TOTP_8_DIGITS } TokenDigitsCount;
 
 typedef struct {
     uint8_t* token;
-    uint8_t token_length;
+    size_t token_length;
     char* name;
     TokenHashAlgo algo;
     TokenDigitsCount digits;
@@ -19,6 +19,6 @@ void token_info_free(TokenInfo* token_info);
 bool token_info_set_secret(
     TokenInfo* token_info,
     const char* base32_token_secret,
-    uint8_t token_secret_length,
+    size_t token_secret_length,
     uint8_t* iv);
 uint8_t token_info_get_digits_count(TokenInfo* token_info);
diff --git a/applications/plugins/usbkeyboard/application.fam b/applications/plugins/usbkeyboard/application.fam
index 6bef0d9f2..1e419f3fe 100644
--- a/applications/plugins/usbkeyboard/application.fam
+++ b/applications/plugins/usbkeyboard/application.fam
@@ -11,5 +11,5 @@ App(
     order=60,
     fap_icon="usb_keyboard_10px.png",
     fap_category="Misc",
-    fap_icon_assets="icons",
+    fap_icon_assets="assets",
 )
diff --git a/applications/plugins/usbkeyboard/assets/Arr_dwn_7x9.png b/applications/plugins/usbkeyboard/assets/Arr_dwn_7x9.png
new file mode 100644
index 000000000..d4034efc4
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Arr_dwn_7x9.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Arr_up_7x9.png b/applications/plugins/usbkeyboard/assets/Arr_up_7x9.png
new file mode 100644
index 000000000..28b4236a2
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Arr_up_7x9.png differ
diff --git a/applications/plugins/usbkeyboard/assets/ButtonDown_7x4.png b/applications/plugins/usbkeyboard/assets/ButtonDown_7x4.png
new file mode 100644
index 000000000..2954bb6a6
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/ButtonDown_7x4.png differ
diff --git a/applications/plugins/usbkeyboard/assets/ButtonLeft_4x7.png b/applications/plugins/usbkeyboard/assets/ButtonLeft_4x7.png
new file mode 100644
index 000000000..0b4655d43
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/ButtonLeft_4x7.png differ
diff --git a/applications/plugins/usbkeyboard/assets/ButtonRight_4x7.png b/applications/plugins/usbkeyboard/assets/ButtonRight_4x7.png
new file mode 100644
index 000000000..8e1c74c1c
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/ButtonRight_4x7.png differ
diff --git a/applications/plugins/usbkeyboard/assets/ButtonUp_7x4.png b/applications/plugins/usbkeyboard/assets/ButtonUp_7x4.png
new file mode 100644
index 000000000..1be79328b
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/ButtonUp_7x4.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Button_18x18.png b/applications/plugins/usbkeyboard/assets/Button_18x18.png
new file mode 100644
index 000000000..30a5b4fab
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Button_18x18.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Circles_47x47.png b/applications/plugins/usbkeyboard/assets/Circles_47x47.png
new file mode 100644
index 000000000..6a16ebf7b
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Circles_47x47.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Left_mouse_icon_9x9.png b/applications/plugins/usbkeyboard/assets/Left_mouse_icon_9x9.png
new file mode 100644
index 000000000..c533d8572
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Left_mouse_icon_9x9.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Like_def_11x9.png b/applications/plugins/usbkeyboard/assets/Like_def_11x9.png
new file mode 100644
index 000000000..555bea3d4
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Like_def_11x9.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Like_pressed_17x17.png b/applications/plugins/usbkeyboard/assets/Like_pressed_17x17.png
new file mode 100644
index 000000000..f5bf276f3
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Like_pressed_17x17.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Ok_btn_9x9.png b/applications/plugins/usbkeyboard/assets/Ok_btn_9x9.png
new file mode 100644
index 000000000..9a1539da2
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Ok_btn_9x9.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Ok_btn_pressed_13x13.png b/applications/plugins/usbkeyboard/assets/Ok_btn_pressed_13x13.png
new file mode 100644
index 000000000..6b46ba3a8
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Ok_btn_pressed_13x13.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Pin_arrow_down_7x9.png b/applications/plugins/usbkeyboard/assets/Pin_arrow_down_7x9.png
new file mode 100644
index 000000000..9687397af
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Pin_arrow_down_7x9.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Pin_arrow_left_9x7.png b/applications/plugins/usbkeyboard/assets/Pin_arrow_left_9x7.png
new file mode 100644
index 000000000..fb4ded78f
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Pin_arrow_left_9x7.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Pin_arrow_right_9x7.png b/applications/plugins/usbkeyboard/assets/Pin_arrow_right_9x7.png
new file mode 100644
index 000000000..97648d176
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Pin_arrow_right_9x7.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Pin_arrow_up_7x9.png b/applications/plugins/usbkeyboard/assets/Pin_arrow_up_7x9.png
new file mode 100644
index 000000000..a91a6fd5e
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Pin_arrow_up_7x9.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Pin_back_arrow_10x8.png b/applications/plugins/usbkeyboard/assets/Pin_back_arrow_10x8.png
new file mode 100644
index 000000000..3bafabd14
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Pin_back_arrow_10x8.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Pressed_Button_13x13.png b/applications/plugins/usbkeyboard/assets/Pressed_Button_13x13.png
new file mode 100644
index 000000000..823926b84
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Pressed_Button_13x13.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Right_mouse_icon_9x9.png b/applications/plugins/usbkeyboard/assets/Right_mouse_icon_9x9.png
new file mode 100644
index 000000000..446d7176c
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Right_mouse_icon_9x9.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Space_65x18.png b/applications/plugins/usbkeyboard/assets/Space_65x18.png
new file mode 100644
index 000000000..b60ae5097
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Space_65x18.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Voldwn_6x6.png b/applications/plugins/usbkeyboard/assets/Voldwn_6x6.png
new file mode 100644
index 000000000..d7a82a2df
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Voldwn_6x6.png differ
diff --git a/applications/plugins/usbkeyboard/assets/Volup_8x6.png b/applications/plugins/usbkeyboard/assets/Volup_8x6.png
new file mode 100644
index 000000000..4b7ec66d6
Binary files /dev/null and b/applications/plugins/usbkeyboard/assets/Volup_8x6.png differ
diff --git a/applications/plugins/wav_player/application.fam b/applications/plugins/wav_player/application.fam
index 04b558315..ec0c76291 100644
--- a/applications/plugins/wav_player/application.fam
+++ b/applications/plugins/wav_player/application.fam
@@ -8,5 +8,5 @@ App(
     order=60,
     fap_icon="wav_10px.png",
     fap_category="Music",
-    fap_icon_assets="icons",
+    fap_icon_assets="images",
 )
diff --git a/applications/plugins/wav_player/images/music_10px.png b/applications/plugins/wav_player/images/music_10px.png
new file mode 100644
index 000000000..d41eb0db8
Binary files /dev/null and b/applications/plugins/wav_player/images/music_10px.png differ
diff --git a/applications/plugins/wav_player/wav_player.c b/applications/plugins/wav_player/wav_player.c
index 89659bff7..f8fce4549 100644
--- a/applications/plugins/wav_player/wav_player.c
+++ b/applications/plugins/wav_player/wav_player.c
@@ -13,6 +13,8 @@
 #include <math.h>
 #include <WAV_Player_icons.h>
 
+#include <WAV_Player_icons.h>
+
 #define TAG "WavPlayer"
 
 #define WAVPLAYER_FOLDER "/ext/wav_player"
diff --git a/assets/icons/Infrared/Rotate_25x27.png b/assets/icons/Infrared/Rotate_25x27.png
index 0c62e9dc1..648634a09 100644
Binary files a/assets/icons/Infrared/Rotate_25x27.png and b/assets/icons/Infrared/Rotate_25x27.png differ
diff --git a/assets/icons/Infrared/Rotate_hvr_25x27.png b/assets/icons/Infrared/Rotate_hvr_25x27.png
index d2ab0f3fc..a2b5cf93d 100644
Binary files a/assets/icons/Infrared/Rotate_hvr_25x27.png and b/assets/icons/Infrared/Rotate_hvr_25x27.png differ
diff --git a/assets/icons/Infrared/Timer_25x27.png b/assets/icons/Infrared/Timer_25x27.png
index 5ce468198..2f1853a34 100644
Binary files a/assets/icons/Infrared/Timer_25x27.png and b/assets/icons/Infrared/Timer_25x27.png differ
diff --git a/assets/icons/Infrared/Timer_hvr_25x27.png b/assets/icons/Infrared/Timer_hvr_25x27.png
index f6959c244..d4dffa544 100644
Binary files a/assets/icons/Infrared/Timer_hvr_25x27.png and b/assets/icons/Infrared/Timer_hvr_25x27.png differ
diff --git a/assets/icons/SubGhz/Dynamic_9x7.png b/assets/icons/SubGhz/Dynamic_9x7.png
new file mode 100644
index 000000000..50922d4fb
Binary files /dev/null and b/assets/icons/SubGhz/Dynamic_9x7.png differ
diff --git a/assets/icons/SubGhz/Raw_9x7.png b/assets/icons/SubGhz/Raw_9x7.png
new file mode 100644
index 000000000..39a6d0386
Binary files /dev/null and b/assets/icons/SubGhz/Raw_9x7.png differ
diff --git a/assets/icons/SubGhz/Static_9x7.png b/assets/icons/SubGhz/Static_9x7.png
new file mode 100644
index 000000000..dad4833e3
Binary files /dev/null and b/assets/icons/SubGhz/Static_9x7.png differ
diff --git a/firmware.scons b/firmware.scons
index d501996b3..63a1aa3f7 100644
--- a/firmware.scons
+++ b/firmware.scons
@@ -178,23 +178,6 @@ sources.extend(
     )
 )
 
-
-fwenv.AppendUnique(
-    LINKFLAGS=[
-        "-specs=nano.specs",
-        "-specs=nosys.specs",
-        "-Wl,--gc-sections",
-        "-Wl,--undefined=uxTopUsedPriority",
-        "-Wl,--wrap,_malloc_r",
-        "-Wl,--wrap,_free_r",
-        "-Wl,--wrap,_calloc_r",
-        "-Wl,--wrap,_realloc_r",
-        "-n",
-        "-Xlinker",
-        "-Map=${TARGET}.map",
-    ],
-)
-
 # Debug
 # print(fwenv.Dump())
 
diff --git a/firmware/targets/f7/api_symbols.csv b/firmware/targets/f7/api_symbols.csv
index 4df8b4d8e..9f1968b22 100644
--- a/firmware/targets/f7/api_symbols.csv
+++ b/firmware/targets/f7/api_symbols.csv
@@ -1,5 +1,5 @@
 entry,status,name,type,params
-Version,+,7.1,,
+Version,+,8.1,,
 Header,+,applications/services/bt/bt_service/bt.h,,
 Header,+,applications/services/cli/cli.h,,
 Header,+,applications/services/cli/cli_vcp.h,,
diff --git a/firmware/targets/f7/furi_hal/furi_hal_nfc.c b/firmware/targets/f7/furi_hal/furi_hal_nfc.c
index 069ac4ea4..3ebf4f82b 100644
--- a/firmware/targets/f7/furi_hal/furi_hal_nfc.c
+++ b/firmware/targets/f7/furi_hal/furi_hal_nfc.c
@@ -620,6 +620,10 @@ uint16_t furi_hal_nfc_bitstream_to_data_and_parity(
     uint16_t in_buff_bits,
     uint8_t* out_data,
     uint8_t* out_parity) {
+    if(in_buff_bits < 8) {
+        out_data[0] = in_buff[0];
+        return in_buff_bits;
+    }
     if(in_buff_bits % 9 != 0) {
         return 0;
     }
@@ -635,7 +639,7 @@ uint16_t furi_hal_nfc_bitstream_to_data_and_parity(
         bit_processed += 9;
         curr_byte++;
     }
-    return curr_byte;
+    return curr_byte * 8;
 }
 
 bool furi_hal_nfc_tx_rx(FuriHalNfcTxRxContext* tx_rx, uint16_t timeout_ms) {
@@ -692,8 +696,8 @@ bool furi_hal_nfc_tx_rx(FuriHalNfcTxRxContext* tx_rx, uint16_t timeout_ms) {
 
     if(tx_rx->tx_rx_type == FuriHalNfcTxRxTypeRaw ||
        tx_rx->tx_rx_type == FuriHalNfcTxRxTypeRxRaw) {
-        tx_rx->rx_bits = 8 * furi_hal_nfc_bitstream_to_data_and_parity(
-                                 temp_rx_buff, *temp_rx_bits, tx_rx->rx_data, tx_rx->rx_parity);
+        tx_rx->rx_bits = furi_hal_nfc_bitstream_to_data_and_parity(
+            temp_rx_buff, *temp_rx_bits, tx_rx->rx_data, tx_rx->rx_parity);
     } else {
         memcpy(tx_rx->rx_data, temp_rx_buff, MIN(*temp_rx_bits / 8, FURI_HAL_NFC_DATA_BUFF_SIZE));
         tx_rx->rx_bits = *temp_rx_bits;
diff --git a/lib/nfc/helpers/reader_analyzer.c b/lib/nfc/helpers/reader_analyzer.c
index eeacbfe6e..1629a06d5 100644
--- a/lib/nfc/helpers/reader_analyzer.c
+++ b/lib/nfc/helpers/reader_analyzer.c
@@ -205,10 +205,17 @@ NfcProtocol
 
 FuriHalNfcDevData* reader_analyzer_get_nfc_data(ReaderAnalyzer* instance) {
     furi_assert(instance);
-
+    instance->nfc_data = reader_analyzer_nfc_data[ReaderAnalyzerNfcDataMfClassic];
     return &instance->nfc_data;
 }
 
+void reader_analyzer_set_nfc_data(ReaderAnalyzer* instance, FuriHalNfcDevData* nfc_data) {
+    furi_assert(instance);
+    furi_assert(nfc_data);
+
+    memcpy(&instance->nfc_data, nfc_data, sizeof(FuriHalNfcDevData));
+}
+
 static void reader_analyzer_write(
     ReaderAnalyzer* instance,
     uint8_t* data,
diff --git a/lib/nfc/helpers/reader_analyzer.h b/lib/nfc/helpers/reader_analyzer.h
index cc501f5a6..13bf4d77c 100644
--- a/lib/nfc/helpers/reader_analyzer.h
+++ b/lib/nfc/helpers/reader_analyzer.h
@@ -35,6 +35,8 @@ NfcProtocol
 
 FuriHalNfcDevData* reader_analyzer_get_nfc_data(ReaderAnalyzer* instance);
 
+void reader_analyzer_set_nfc_data(ReaderAnalyzer* instance, FuriHalNfcDevData* nfc_data);
+
 void reader_analyzer_prepare_tx_rx(
     ReaderAnalyzer* instance,
     FuriHalNfcTxRxContext* tx_rx,
diff --git a/lib/nfc/nfc_device.c b/lib/nfc/nfc_device.c
index 15f424fa3..bb43c7021 100644
--- a/lib/nfc/nfc_device.c
+++ b/lib/nfc/nfc_device.c
@@ -1155,6 +1155,13 @@ static bool nfc_device_load_data(NfcDevice* dev, FuriString* path, bool show_dia
         if(!flipper_format_read_hex(file, "UID", data->uid, data->uid_len)) break;
         if(!flipper_format_read_hex(file, "ATQA", data->atqa, 2)) break;
         if(!flipper_format_read_hex(file, "SAK", &data->sak, 1)) break;
+        // Load CUID
+        uint8_t* cuid_start = data->uid;
+        if(data->uid_len == 7) {
+            cuid_start = &data->uid[3];
+        }
+        data->cuid = (cuid_start[0] << 24) | (cuid_start[1] << 16) | (cuid_start[2] << 8) |
+                     (cuid_start[3]);
         // Parse other data
         if(dev->format == NfcDeviceSaveFormatMifareUl) {
             if(!nfc_device_load_mifare_ul_data(file, dev)) break;
diff --git a/lib/nfc/nfc_worker.c b/lib/nfc/nfc_worker.c
index 71e10408e..ec199be82 100644
--- a/lib/nfc/nfc_worker.c
+++ b/lib/nfc/nfc_worker.c
@@ -104,6 +104,10 @@ int32_t nfc_worker_task(void* context) {
         nfc_worker_emulate_mf_ultralight(nfc_worker);
     } else if(nfc_worker->state == NfcWorkerStateMfClassicEmulate) {
         nfc_worker_emulate_mf_classic(nfc_worker);
+    } else if(nfc_worker->state == NfcWorkerStateMfClassicWrite) {
+        nfc_worker_write_mf_classic(nfc_worker);
+    } else if(nfc_worker->state == NfcWorkerStateMfClassicUpdate) {
+        nfc_worker_update_mf_classic(nfc_worker);
     } else if(nfc_worker->state == NfcWorkerStateReadMfUltralightReadAuth) {
         nfc_worker_mf_ultralight_read_auth(nfc_worker);
     } else if(nfc_worker->state == NfcWorkerStateMfClassicDictAttack) {
@@ -790,6 +794,144 @@ void nfc_worker_emulate_mf_classic(NfcWorker* nfc_worker) {
     rfal_platform_spi_release();
 }
 
+void nfc_worker_write_mf_classic(NfcWorker* nfc_worker) {
+    FuriHalNfcTxRxContext tx_rx = {};
+    bool card_found_notified = false;
+    FuriHalNfcDevData nfc_data = {};
+    MfClassicData* src_data = &nfc_worker->dev_data->mf_classic_data;
+    MfClassicData dest_data = *src_data;
+
+    while(nfc_worker->state == NfcWorkerStateMfClassicWrite) {
+        if(furi_hal_nfc_detect(&nfc_data, 200)) {
+            if(!card_found_notified) {
+                nfc_worker->callback(NfcWorkerEventCardDetected, nfc_worker->context);
+                card_found_notified = true;
+            }
+            furi_hal_nfc_sleep();
+
+            FURI_LOG_I(TAG, "Check low level nfc data");
+            if(memcmp(&nfc_data, &nfc_worker->dev_data->nfc_data, sizeof(FuriHalNfcDevData))) {
+                FURI_LOG_E(TAG, "Wrong card");
+                nfc_worker->callback(NfcWorkerEventWrongCard, nfc_worker->context);
+                break;
+            }
+
+            FURI_LOG_I(TAG, "Check mf classic type");
+            MfClassicType type =
+                mf_classic_get_classic_type(nfc_data.atqa[0], nfc_data.atqa[1], nfc_data.sak);
+            if(type != nfc_worker->dev_data->mf_classic_data.type) {
+                FURI_LOG_E(TAG, "Wrong mf classic type");
+                nfc_worker->callback(NfcWorkerEventWrongCard, nfc_worker->context);
+                break;
+            }
+
+            // Set blocks not read
+            mf_classic_set_sector_data_not_read(&dest_data);
+            FURI_LOG_I(TAG, "Updating card sectors");
+            uint8_t total_sectors = mf_classic_get_total_sectors_num(type);
+            bool write_success = true;
+            for(uint8_t i = 0; i < total_sectors; i++) {
+                FURI_LOG_I(TAG, "Reading sector %d", i);
+                mf_classic_read_sector(&tx_rx, &dest_data, i);
+                bool old_data_read = mf_classic_is_sector_data_read(src_data, i);
+                bool new_data_read = mf_classic_is_sector_data_read(&dest_data, i);
+                if(old_data_read != new_data_read) {
+                    FURI_LOG_E(TAG, "Failed to update sector %d", i);
+                    write_success = false;
+                    break;
+                }
+                if(nfc_worker->state != NfcWorkerStateMfClassicWrite) break;
+                if(!mf_classic_write_sector(&tx_rx, &dest_data, src_data, i)) {
+                    FURI_LOG_E(TAG, "Failed to write %d sector", i);
+                    write_success = false;
+                    break;
+                }
+            }
+            if(nfc_worker->state != NfcWorkerStateMfClassicWrite) break;
+            if(write_success) {
+                nfc_worker->callback(NfcWorkerEventSuccess, nfc_worker->context);
+                break;
+            } else {
+                nfc_worker->callback(NfcWorkerEventFail, nfc_worker->context);
+                break;
+            }
+
+        } else {
+            if(card_found_notified) {
+                nfc_worker->callback(NfcWorkerEventNoCardDetected, nfc_worker->context);
+                card_found_notified = false;
+            }
+        }
+        furi_delay_ms(300);
+    }
+}
+
+void nfc_worker_update_mf_classic(NfcWorker* nfc_worker) {
+    FuriHalNfcTxRxContext tx_rx = {};
+    bool card_found_notified = false;
+    FuriHalNfcDevData nfc_data = {};
+    MfClassicData* old_data = &nfc_worker->dev_data->mf_classic_data;
+    MfClassicData new_data = *old_data;
+
+    while(nfc_worker->state == NfcWorkerStateMfClassicUpdate) {
+        if(furi_hal_nfc_detect(&nfc_data, 200)) {
+            if(!card_found_notified) {
+                nfc_worker->callback(NfcWorkerEventCardDetected, nfc_worker->context);
+                card_found_notified = true;
+            }
+            furi_hal_nfc_sleep();
+
+            FURI_LOG_I(TAG, "Check low level nfc data");
+            if(memcmp(&nfc_data, &nfc_worker->dev_data->nfc_data, sizeof(FuriHalNfcDevData))) {
+                FURI_LOG_E(TAG, "Low level nfc data mismatch");
+                nfc_worker->callback(NfcWorkerEventWrongCard, nfc_worker->context);
+                break;
+            }
+
+            FURI_LOG_I(TAG, "Check MF classic type");
+            MfClassicType type =
+                mf_classic_get_classic_type(nfc_data.atqa[0], nfc_data.atqa[1], nfc_data.sak);
+            if(type != nfc_worker->dev_data->mf_classic_data.type) {
+                FURI_LOG_E(TAG, "MF classic type mismatch");
+                nfc_worker->callback(NfcWorkerEventWrongCard, nfc_worker->context);
+                break;
+            }
+
+            // Set blocks not read
+            mf_classic_set_sector_data_not_read(&new_data);
+            FURI_LOG_I(TAG, "Updating card sectors");
+            uint8_t total_sectors = mf_classic_get_total_sectors_num(type);
+            bool update_success = true;
+            for(uint8_t i = 0; i < total_sectors; i++) {
+                FURI_LOG_I(TAG, "Reading sector %d", i);
+                mf_classic_read_sector(&tx_rx, &new_data, i);
+                bool old_data_read = mf_classic_is_sector_data_read(old_data, i);
+                bool new_data_read = mf_classic_is_sector_data_read(&new_data, i);
+                if(old_data_read != new_data_read) {
+                    FURI_LOG_E(TAG, "Failed to update sector %d", i);
+                    update_success = false;
+                    break;
+                }
+                if(nfc_worker->state != NfcWorkerStateMfClassicUpdate) break;
+            }
+            if(nfc_worker->state != NfcWorkerStateMfClassicUpdate) break;
+
+            // Check updated data
+            if(update_success) {
+                *old_data = new_data;
+                nfc_worker->callback(NfcWorkerEventSuccess, nfc_worker->context);
+                break;
+            }
+        } else {
+            if(card_found_notified) {
+                nfc_worker->callback(NfcWorkerEventNoCardDetected, nfc_worker->context);
+                card_found_notified = false;
+            }
+        }
+        furi_delay_ms(300);
+    }
+}
+
 void nfc_worker_mf_ultralight_read_auth(NfcWorker* nfc_worker) {
     furi_assert(nfc_worker);
     furi_assert(nfc_worker->callback);
@@ -881,7 +1023,13 @@ void nfc_worker_analyze_reader(NfcWorker* nfc_worker) {
     FuriHalNfcTxRxContext tx_rx = {};
 
     ReaderAnalyzer* reader_analyzer = nfc_worker->reader_analyzer;
-    FuriHalNfcDevData* nfc_data = reader_analyzer_get_nfc_data(reader_analyzer);
+    FuriHalNfcDevData* nfc_data = NULL;
+    if(nfc_worker->dev_data->protocol == NfcDeviceProtocolMifareClassic) {
+        nfc_data = &nfc_worker->dev_data->nfc_data;
+        reader_analyzer_set_nfc_data(reader_analyzer, nfc_data);
+    } else {
+        nfc_data = reader_analyzer_get_nfc_data(reader_analyzer);
+    }
     MfClassicEmulator emulator = {
         .cuid = nfc_util_bytes2num(&nfc_data->uid[nfc_data->uid_len - 4], 4),
         .data = nfc_worker->dev_data->mf_classic_data,
diff --git a/lib/nfc/nfc_worker.h b/lib/nfc/nfc_worker.h
index 3c987b06e..d2c8add87 100644
--- a/lib/nfc/nfc_worker.h
+++ b/lib/nfc/nfc_worker.h
@@ -14,6 +14,8 @@ typedef enum {
     NfcWorkerStateUidEmulate,
     NfcWorkerStateMfUltralightEmulate,
     NfcWorkerStateMfClassicEmulate,
+    NfcWorkerStateMfClassicWrite,
+    NfcWorkerStateMfClassicUpdate,
     NfcWorkerStateReadMfUltralightReadAuth,
     NfcWorkerStateMfClassicDictAttack,
     NfcWorkerStateAnalyzeReader,
@@ -49,13 +51,16 @@ typedef enum {
     NfcWorkerEventNoCardDetected,
     NfcWorkerEventWrongCardDetected,
 
-    // Mifare Classic events
+    // Read Mifare Classic events
     NfcWorkerEventNoDictFound,
     NfcWorkerEventNewSector,
     NfcWorkerEventNewDictKeyBatch,
     NfcWorkerEventFoundKeyA,
     NfcWorkerEventFoundKeyB,
-	
+
+    // Write Mifare Classic events
+    NfcWorkerEventWrongCard,
+
     // Detect Reader events
     NfcWorkerEventDetectReaderDetected,
     NfcWorkerEventDetectReaderLost,
diff --git a/lib/nfc/nfc_worker_i.h b/lib/nfc/nfc_worker_i.h
index adc80e7f9..5e09962fe 100644
--- a/lib/nfc/nfc_worker_i.h
+++ b/lib/nfc/nfc_worker_i.h
@@ -43,6 +43,10 @@ void nfc_worker_emulate_mf_ultralight(NfcWorker* nfc_worker);
 
 void nfc_worker_emulate_mf_classic(NfcWorker* nfc_worker);
 
+void nfc_worker_write_mf_classic(NfcWorker* nfc_worker);
+
+void nfc_worker_update_mf_classic(NfcWorker* nfc_worker);
+
 void nfc_worker_mf_classic_dict_attack(NfcWorker* nfc_worker);
 
 void nfc_worker_mf_ultralight_read_auth(NfcWorker* nfc_worker);
diff --git a/lib/nfc/protocols/crypto1.c b/lib/nfc/protocols/crypto1.c
index f08164ba9..2ac0ff081 100644
--- a/lib/nfc/protocols/crypto1.c
+++ b/lib/nfc/protocols/crypto1.c
@@ -73,3 +73,55 @@ uint32_t prng_successor(uint32_t x, uint32_t n) {
 
     return SWAPENDIAN(x);
 }
+
+void crypto1_decrypt(
+    Crypto1* crypto,
+    uint8_t* encrypted_data,
+    uint16_t encrypted_data_bits,
+    uint8_t* decrypted_data) {
+    furi_assert(crypto);
+    furi_assert(encrypted_data);
+    furi_assert(decrypted_data);
+
+    if(encrypted_data_bits < 8) {
+        uint8_t decrypted_byte = 0;
+        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 0)) << 0;
+        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 1)) << 1;
+        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 2)) << 2;
+        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 3)) << 3;
+        decrypted_data[0] = decrypted_byte;
+    } else {
+        for(size_t i = 0; i < encrypted_data_bits / 8; i++) {
+            decrypted_data[i] = crypto1_byte(crypto, 0, 0) ^ encrypted_data[i];
+        }
+    }
+}
+
+void crypto1_encrypt(
+    Crypto1* crypto,
+    uint8_t* keystream,
+    uint8_t* plain_data,
+    uint16_t plain_data_bits,
+    uint8_t* encrypted_data,
+    uint8_t* encrypted_parity) {
+    furi_assert(crypto);
+    furi_assert(plain_data);
+    furi_assert(encrypted_data);
+    furi_assert(encrypted_parity);
+
+    if(plain_data_bits < 8) {
+        encrypted_data[0] = 0;
+        for(size_t i = 0; i < plain_data_bits; i++) {
+            encrypted_data[0] |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(plain_data[0], i)) << i;
+        }
+    } else {
+        memset(encrypted_parity, 0, plain_data_bits / 8 + 1);
+        for(uint8_t i = 0; i < plain_data_bits / 8; i++) {
+            encrypted_data[i] = crypto1_byte(crypto, keystream ? keystream[i] : 0, 0) ^
+                                plain_data[i];
+            encrypted_parity[i / 8] |=
+                (((crypto1_filter(crypto->odd) ^ nfc_util_odd_parity8(plain_data[i])) & 0x01)
+                 << (7 - (i & 0x0007)));
+        }
+    }
+}
diff --git a/lib/nfc/protocols/crypto1.h b/lib/nfc/protocols/crypto1.h
index 07b39c22c..450d1534e 100644
--- a/lib/nfc/protocols/crypto1.h
+++ b/lib/nfc/protocols/crypto1.h
@@ -21,3 +21,17 @@ uint32_t crypto1_word(Crypto1* crypto1, uint32_t in, int is_encrypted);
 uint32_t crypto1_filter(uint32_t in);
 
 uint32_t prng_successor(uint32_t x, uint32_t n);
+
+void crypto1_decrypt(
+    Crypto1* crypto,
+    uint8_t* encrypted_data,
+    uint16_t encrypted_data_bits,
+    uint8_t* decrypted_data);
+
+void crypto1_encrypt(
+    Crypto1* crypto,
+    uint8_t* keystream,
+    uint8_t* plain_data,
+    uint16_t plain_data_bits,
+    uint8_t* encrypted_data,
+    uint8_t* encrypted_parity);
diff --git a/lib/nfc/protocols/mifare_classic.c b/lib/nfc/protocols/mifare_classic.c
index e879ff4ef..7b0e17975 100644
--- a/lib/nfc/protocols/mifare_classic.c
+++ b/lib/nfc/protocols/mifare_classic.c
@@ -9,21 +9,8 @@
 
 #define MF_CLASSIC_AUTH_KEY_A_CMD (0x60U)
 #define MF_CLASSIC_AUTH_KEY_B_CMD (0x61U)
-#define MF_CLASSIC_READ_SECT_CMD (0x30)
-
-typedef enum {
-    MfClassicActionDataRead,
-    MfClassicActionDataWrite,
-    MfClassicActionDataInc,
-    MfClassicActionDataDec,
-
-    MfClassicActionKeyARead,
-    MfClassicActionKeyAWrite,
-    MfClassicActionKeyBRead,
-    MfClassicActionKeyBWrite,
-    MfClassicActionACRead,
-    MfClassicActionACWrite,
-} MfClassicAction;
+#define MF_CLASSIC_READ_BLOCK_CMD (0x30)
+#define MF_CLASSIC_WRITE_BLOCK_CMD (0xA0)
 
 const char* mf_classic_get_type_str(MfClassicType type) {
     if(type == MfClassicType1k) {
@@ -122,6 +109,24 @@ void mf_classic_set_block_read(MfClassicData* data, uint8_t block_num, MfClassic
     FURI_BIT_SET(data->block_read_mask[block_num / 32], block_num % 32);
 }
 
+bool mf_classic_is_sector_data_read(MfClassicData* data, uint8_t sector_num) {
+    furi_assert(data);
+
+    uint8_t first_block = mf_classic_get_first_block_num_of_sector(sector_num);
+    uint8_t total_blocks = mf_classic_get_blocks_num_in_sector(sector_num);
+    bool data_read = true;
+    for(size_t i = first_block; i < first_block + total_blocks; i++) {
+        data_read &= mf_classic_is_block_read(data, i);
+    }
+
+    return data_read;
+}
+
+void mf_classic_set_sector_data_not_read(MfClassicData* data) {
+    furi_assert(data);
+    memset(data->block_read_mask, 0, sizeof(data->block_read_mask));
+}
+
 bool mf_classic_is_key_found(MfClassicData* data, uint8_t sector_num, MfClassicKey key_type) {
     furi_assert(data);
 
@@ -190,6 +195,9 @@ void mf_classic_get_read_sectors_and_keys(
     uint8_t* sectors_read,
     uint8_t* keys_found) {
     furi_assert(data);
+    furi_assert(sectors_read);
+    furi_assert(keys_found);
+
     *sectors_read = 0;
     *keys_found = 0;
     uint8_t sectors_total = mf_classic_get_total_sectors_num(data->type);
@@ -225,12 +233,12 @@ bool mf_classic_is_card_read(MfClassicData* data) {
     return card_read;
 }
 
-static bool mf_classic_is_allowed_access_sector_trailer(
-    MfClassicEmulator* emulator,
+bool mf_classic_is_allowed_access_sector_trailer(
+    MfClassicData* data,
     uint8_t block_num,
     MfClassicKey key,
     MfClassicAction action) {
-    uint8_t* sector_trailer = emulator->data.block[block_num].value;
+    uint8_t* sector_trailer = data->block[block_num].value;
     uint8_t AC = ((sector_trailer[7] >> 5) & 0x04) | ((sector_trailer[8] >> 2) & 0x02) |
                  ((sector_trailer[8] >> 7) & 0x01);
     switch(action) {
@@ -266,13 +274,13 @@ static bool mf_classic_is_allowed_access_sector_trailer(
     return true;
 }
 
-static bool mf_classic_is_allowed_access_data_block(
-    MfClassicEmulator* emulator,
+bool mf_classic_is_allowed_access_data_block(
+    MfClassicData* data,
     uint8_t block_num,
     MfClassicKey key,
     MfClassicAction action) {
     uint8_t* sector_trailer =
-        emulator->data.block[mf_classic_get_sector_trailer_num_by_block(block_num)].value;
+        data->block[mf_classic_get_sector_trailer_num_by_block(block_num)].value;
 
     uint8_t sector_block;
     if(block_num <= 128) {
@@ -336,9 +344,10 @@ static bool mf_classic_is_allowed_access(
     MfClassicKey key,
     MfClassicAction action) {
     if(mf_classic_is_sector_trailer(block_num)) {
-        return mf_classic_is_allowed_access_sector_trailer(emulator, block_num, key, action);
+        return mf_classic_is_allowed_access_sector_trailer(
+            &emulator->data, block_num, key, action);
     } else {
-        return mf_classic_is_allowed_access_data_block(emulator, block_num, key, action);
+        return mf_classic_is_allowed_access_data_block(&emulator->data, block_num, key, action);
     }
 }
 
@@ -514,25 +523,17 @@ bool mf_classic_read_block(
     furi_assert(block);
 
     bool read_block_success = false;
-    uint8_t plain_cmd[4] = {MF_CLASSIC_READ_SECT_CMD, block_num, 0x00, 0x00};
+    uint8_t plain_cmd[4] = {MF_CLASSIC_READ_BLOCK_CMD, block_num, 0x00, 0x00};
     nfca_append_crc16(plain_cmd, 2);
-    memset(tx_rx->tx_data, 0, sizeof(tx_rx->tx_data));
-    memset(tx_rx->tx_parity, 0, sizeof(tx_rx->tx_parity));
 
-    for(uint8_t i = 0; i < 4; i++) {
-        tx_rx->tx_data[i] = crypto1_byte(crypto, 0x00, 0) ^ plain_cmd[i];
-        tx_rx->tx_parity[0] |=
-            ((crypto1_filter(crypto->odd) ^ nfc_util_odd_parity8(plain_cmd[i])) & 0x01) << (7 - i);
-    }
+    crypto1_encrypt(crypto, NULL, plain_cmd, 4 * 8, tx_rx->tx_data, tx_rx->tx_parity);
     tx_rx->tx_bits = 4 * 9;
     tx_rx->tx_rx_type = FuriHalNfcTxRxTypeRaw;
 
     if(furi_hal_nfc_tx_rx(tx_rx, 50)) {
         if(tx_rx->rx_bits == 8 * (MF_CLASSIC_BLOCK_SIZE + 2)) {
             uint8_t block_received[MF_CLASSIC_BLOCK_SIZE + 2];
-            for(uint8_t i = 0; i < MF_CLASSIC_BLOCK_SIZE + 2; i++) {
-                block_received[i] = crypto1_byte(crypto, 0, 0) ^ tx_rx->rx_data[i];
-            }
+            crypto1_decrypt(crypto, tx_rx->rx_data, tx_rx->rx_bits, block_received);
             uint16_t crc_calc = nfca_get_crc16(block_received, MF_CLASSIC_BLOCK_SIZE);
             uint16_t crc_received = (block_received[MF_CLASSIC_BLOCK_SIZE + 1] << 8) |
                                     block_received[MF_CLASSIC_BLOCK_SIZE];
@@ -754,49 +755,6 @@ uint8_t mf_classic_update_card(FuriHalNfcTxRxContext* tx_rx, MfClassicData* data
     return sectors_read;
 }
 
-void mf_crypto1_decrypt(
-    Crypto1* crypto,
-    uint8_t* encrypted_data,
-    uint16_t encrypted_data_bits,
-    uint8_t* decrypted_data) {
-    if(encrypted_data_bits < 8) {
-        uint8_t decrypted_byte = 0;
-        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 0)) << 0;
-        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 1)) << 1;
-        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 2)) << 2;
-        decrypted_byte |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(encrypted_data[0], 3)) << 3;
-        decrypted_data[0] = decrypted_byte;
-    } else {
-        for(size_t i = 0; i < encrypted_data_bits / 8; i++) {
-            decrypted_data[i] = crypto1_byte(crypto, 0, 0) ^ encrypted_data[i];
-        }
-    }
-}
-
-void mf_crypto1_encrypt(
-    Crypto1* crypto,
-    uint8_t* keystream,
-    uint8_t* plain_data,
-    uint16_t plain_data_bits,
-    uint8_t* encrypted_data,
-    uint8_t* encrypted_parity) {
-    if(plain_data_bits < 8) {
-        encrypted_data[0] = 0;
-        for(size_t i = 0; i < plain_data_bits; i++) {
-            encrypted_data[0] |= (crypto1_bit(crypto, 0, 0) ^ FURI_BIT(plain_data[0], i)) << i;
-        }
-    } else {
-        memset(encrypted_parity, 0, plain_data_bits / 8 + 1);
-        for(uint8_t i = 0; i < plain_data_bits / 8; i++) {
-            encrypted_data[i] = crypto1_byte(crypto, keystream ? keystream[i] : 0, 0) ^
-                                plain_data[i];
-            encrypted_parity[i / 8] |=
-                (((crypto1_filter(crypto->odd) ^ nfc_util_odd_parity8(plain_data[i])) & 0x01)
-                 << (7 - (i & 0x0007)));
-        }
-    }
-}
-
 bool mf_classic_emulator(MfClassicEmulator* emulator, FuriHalNfcTxRxContext* tx_rx) {
     furi_assert(emulator);
     furi_assert(tx_rx);
@@ -819,7 +777,7 @@ bool mf_classic_emulator(MfClassicEmulator* emulator, FuriHalNfcTxRxContext* tx_
                     tx_rx->rx_bits);
                 break;
             }
-            mf_crypto1_decrypt(&emulator->crypto, tx_rx->rx_data, tx_rx->rx_bits, plain_data);
+            crypto1_decrypt(&emulator->crypto, tx_rx->rx_data, tx_rx->rx_bits, plain_data);
         }
 
         if(plain_data[0] == 0x50 && plain_data[1] == 0x00) {
@@ -857,7 +815,7 @@ bool mf_classic_emulator(MfClassicEmulator* emulator, FuriHalNfcTxRxContext* tx_
                 tx_rx->tx_bits = sizeof(nt) * 8;
                 tx_rx->tx_rx_type = FuriHalNfcTxRxTransparent;
             } else {
-                mf_crypto1_encrypt(
+                crypto1_encrypt(
                     &emulator->crypto,
                     nt_keystream,
                     nt,
@@ -904,7 +862,7 @@ bool mf_classic_emulator(MfClassicEmulator* emulator, FuriHalNfcTxRxContext* tx_
             uint32_t ans = prng_successor(nonce, 96);
             uint8_t responce[4] = {};
             nfc_util_num2bytes(ans, 4, responce);
-            mf_crypto1_encrypt(
+            crypto1_encrypt(
                 &emulator->crypto,
                 NULL,
                 responce,
@@ -938,7 +896,7 @@ bool mf_classic_emulator(MfClassicEmulator* emulator, FuriHalNfcTxRxContext* tx_
                     // Send NACK
                     uint8_t nack = 0x04;
                     if(is_encrypted) {
-                        mf_crypto1_encrypt(
+                        crypto1_encrypt(
                             &emulator->crypto, NULL, &nack, 4, tx_rx->tx_data, tx_rx->tx_parity);
                     } else {
                         tx_rx->tx_data[0] = nack;
@@ -951,7 +909,7 @@ bool mf_classic_emulator(MfClassicEmulator* emulator, FuriHalNfcTxRxContext* tx_
             }
             nfca_append_crc16(block_data, 16);
 
-            mf_crypto1_encrypt(
+            crypto1_encrypt(
                 &emulator->crypto,
                 NULL,
                 block_data,
@@ -967,14 +925,14 @@ bool mf_classic_emulator(MfClassicEmulator* emulator, FuriHalNfcTxRxContext* tx_
             }
             // Send ACK
             uint8_t ack = 0x0A;
-            mf_crypto1_encrypt(&emulator->crypto, NULL, &ack, 4, tx_rx->tx_data, tx_rx->tx_parity);
+            crypto1_encrypt(&emulator->crypto, NULL, &ack, 4, tx_rx->tx_data, tx_rx->tx_parity);
             tx_rx->tx_rx_type = FuriHalNfcTxRxTransparent;
             tx_rx->tx_bits = 4;
 
             if(!furi_hal_nfc_tx_rx(tx_rx, 300)) break;
             if(tx_rx->rx_bits != 18 * 8) break;
 
-            mf_crypto1_decrypt(&emulator->crypto, tx_rx->rx_data, tx_rx->rx_bits, plain_data);
+            crypto1_decrypt(&emulator->crypto, tx_rx->rx_data, tx_rx->rx_bits, plain_data);
             uint8_t block_data[16] = {};
             memcpy(block_data, emulator->data.block[block].value, MF_CLASSIC_BLOCK_SIZE);
             if(mf_classic_is_sector_trailer(block)) {
@@ -1002,7 +960,7 @@ bool mf_classic_emulator(MfClassicEmulator* emulator, FuriHalNfcTxRxContext* tx_
             }
             // Send ACK
             ack = 0x0A;
-            mf_crypto1_encrypt(&emulator->crypto, NULL, &ack, 4, tx_rx->tx_data, tx_rx->tx_parity);
+            crypto1_encrypt(&emulator->crypto, NULL, &ack, 4, tx_rx->tx_data, tx_rx->tx_parity);
             tx_rx->tx_rx_type = FuriHalNfcTxRxTransparent;
             tx_rx->tx_bits = 4;
         } else {
@@ -1015,8 +973,7 @@ bool mf_classic_emulator(MfClassicEmulator* emulator, FuriHalNfcTxRxContext* tx_
         // Send NACK
         uint8_t nack = 0x04;
         if(is_encrypted) {
-            mf_crypto1_encrypt(
-                &emulator->crypto, NULL, &nack, 4, tx_rx->tx_data, tx_rx->tx_parity);
+            crypto1_encrypt(&emulator->crypto, NULL, &nack, 4, tx_rx->tx_data, tx_rx->tx_parity);
         } else {
             tx_rx->tx_data[0] = nack;
         }
@@ -1027,3 +984,143 @@ bool mf_classic_emulator(MfClassicEmulator* emulator, FuriHalNfcTxRxContext* tx_
 
     return true;
 }
+
+bool mf_classic_write_block(
+    FuriHalNfcTxRxContext* tx_rx,
+    MfClassicBlock* src_block,
+    uint8_t block_num,
+    MfClassicKey key_type,
+    uint64_t key) {
+    furi_assert(tx_rx);
+    furi_assert(src_block);
+
+    Crypto1 crypto = {};
+    uint8_t plain_data[18] = {};
+    uint8_t resp = 0;
+    bool write_success = false;
+
+    do {
+        furi_hal_nfc_sleep();
+        if(!mf_classic_auth(tx_rx, block_num, key, key_type, &crypto)) {
+            FURI_LOG_D(TAG, "Auth fail");
+            break;
+        }
+        // Send write command
+        plain_data[0] = MF_CLASSIC_WRITE_BLOCK_CMD;
+        plain_data[1] = block_num;
+        nfca_append_crc16(plain_data, 2);
+        crypto1_encrypt(&crypto, NULL, plain_data, 4 * 8, tx_rx->tx_data, tx_rx->tx_parity);
+        tx_rx->tx_bits = 4 * 8;
+        tx_rx->tx_rx_type = FuriHalNfcTxRxTypeRaw;
+
+        if(furi_hal_nfc_tx_rx(tx_rx, 50)) {
+            if(tx_rx->rx_bits == 4) {
+                crypto1_decrypt(&crypto, tx_rx->rx_data, 4, &resp);
+                if(resp != 0x0A) {
+                    FURI_LOG_D(TAG, "NACK received on write cmd: %02X", resp);
+                    break;
+                }
+            } else {
+                FURI_LOG_D(TAG, "Not ACK received");
+                break;
+            }
+        } else {
+            FURI_LOG_D(TAG, "Failed to send write cmd");
+            break;
+        }
+
+        // Send data
+        memcpy(plain_data, src_block->value, MF_CLASSIC_BLOCK_SIZE);
+        nfca_append_crc16(plain_data, MF_CLASSIC_BLOCK_SIZE);
+        crypto1_encrypt(
+            &crypto,
+            NULL,
+            plain_data,
+            (MF_CLASSIC_BLOCK_SIZE + 2) * 8,
+            tx_rx->tx_data,
+            tx_rx->tx_parity);
+        tx_rx->tx_bits = (MF_CLASSIC_BLOCK_SIZE + 2) * 8;
+        tx_rx->tx_rx_type = FuriHalNfcTxRxTypeRaw;
+        if(furi_hal_nfc_tx_rx(tx_rx, 50)) {
+            if(tx_rx->rx_bits == 4) {
+                crypto1_decrypt(&crypto, tx_rx->rx_data, 4, &resp);
+                if(resp != 0x0A) {
+                    FURI_LOG_D(TAG, "NACK received on sending data");
+                    break;
+                }
+            } else {
+                FURI_LOG_D(TAG, "Not ACK received");
+                break;
+            }
+        } else {
+            FURI_LOG_D(TAG, "Failed to send data");
+            break;
+        }
+        write_success = true;
+
+        // Send Halt
+        plain_data[0] = 0x50;
+        plain_data[1] = 0x00;
+        nfca_append_crc16(plain_data, 2);
+        crypto1_encrypt(&crypto, NULL, plain_data, 2 * 8, tx_rx->tx_data, tx_rx->tx_parity);
+        tx_rx->tx_bits = 2 * 8;
+        tx_rx->tx_rx_type = FuriHalNfcTxRxTypeRaw;
+        // No response is expected
+        furi_hal_nfc_tx_rx(tx_rx, 50);
+    } while(false);
+
+    return write_success;
+}
+
+bool mf_classic_write_sector(
+    FuriHalNfcTxRxContext* tx_rx,
+    MfClassicData* dest_data,
+    MfClassicData* src_data,
+    uint8_t sec_num) {
+    furi_assert(tx_rx);
+    furi_assert(dest_data);
+    furi_assert(src_data);
+
+    uint8_t first_block = mf_classic_get_first_block_num_of_sector(sec_num);
+    uint8_t total_blocks = mf_classic_get_blocks_num_in_sector(sec_num);
+    MfClassicSectorTrailer* sec_tr = mf_classic_get_sector_trailer_by_sector(dest_data, sec_num);
+    bool key_a_found = mf_classic_is_key_found(dest_data, sec_num, MfClassicKeyA);
+    bool key_b_found = mf_classic_is_key_found(dest_data, sec_num, MfClassicKeyB);
+
+    bool write_success = true;
+    for(size_t i = first_block; i < first_block + total_blocks; i++) {
+        // Compare blocks
+        if(memcmp(dest_data->block[i].value, src_data->block[i].value, MF_CLASSIC_BLOCK_SIZE)) {
+            bool key_a_write_allowed = mf_classic_is_allowed_access_data_block(
+                dest_data, i, MfClassicKeyA, MfClassicActionDataWrite);
+            bool key_b_write_allowed = mf_classic_is_allowed_access_data_block(
+                dest_data, i, MfClassicKeyB, MfClassicActionDataWrite);
+
+            if(key_a_found && key_a_write_allowed) {
+                FURI_LOG_I(TAG, "Writing block %d with key A", i);
+                uint64_t key = nfc_util_bytes2num(sec_tr->key_a, 6);
+                if(!mf_classic_write_block(tx_rx, &src_data->block[i], i, MfClassicKeyA, key)) {
+                    FURI_LOG_E(TAG, "Failed to write block %d", i);
+                    write_success = false;
+                    break;
+                }
+            } else if(key_b_found && key_b_write_allowed) {
+                FURI_LOG_I(TAG, "Writing block %d with key A", i);
+                uint64_t key = nfc_util_bytes2num(sec_tr->key_b, 6);
+                if(!mf_classic_write_block(tx_rx, &src_data->block[i], i, MfClassicKeyB, key)) {
+                    FURI_LOG_E(TAG, "Failed to write block %d", i);
+                    write_success = false;
+                    break;
+                }
+            } else {
+                FURI_LOG_E(TAG, "Failed to find key with write access");
+                write_success = false;
+                break;
+            }
+        } else {
+            FURI_LOG_D(TAG, "Blocks %d are equal", i);
+        }
+    }
+
+    return write_success;
+}
diff --git a/lib/nfc/protocols/mifare_classic.h b/lib/nfc/protocols/mifare_classic.h
index ead846e42..d5467b100 100644
--- a/lib/nfc/protocols/mifare_classic.h
+++ b/lib/nfc/protocols/mifare_classic.h
@@ -27,6 +27,20 @@ typedef enum {
     MfClassicKeyB,
 } MfClassicKey;
 
+typedef enum {
+    MfClassicActionDataRead,
+    MfClassicActionDataWrite,
+    MfClassicActionDataInc,
+    MfClassicActionDataDec,
+
+    MfClassicActionKeyARead,
+    MfClassicActionKeyAWrite,
+    MfClassicActionKeyBRead,
+    MfClassicActionKeyBWrite,
+    MfClassicActionACRead,
+    MfClassicActionACWrite,
+} MfClassicAction;
+
 typedef struct {
     uint8_t value[MF_CLASSIC_BLOCK_SIZE];
 } MfClassicBlock;
@@ -90,6 +104,18 @@ bool mf_classic_is_sector_trailer(uint8_t block);
 
 uint8_t mf_classic_get_sector_by_block(uint8_t block);
 
+bool mf_classic_is_allowed_access_sector_trailer(
+    MfClassicData* data,
+    uint8_t block_num,
+    MfClassicKey key,
+    MfClassicAction action);
+
+bool mf_classic_is_allowed_access_data_block(
+    MfClassicData* data,
+    uint8_t block_num,
+    MfClassicKey key,
+    MfClassicAction action);
+
 bool mf_classic_is_key_found(MfClassicData* data, uint8_t sector_num, MfClassicKey key_type);
 
 void mf_classic_set_key_found(
@@ -104,6 +130,10 @@ bool mf_classic_is_block_read(MfClassicData* data, uint8_t block_num);
 
 void mf_classic_set_block_read(MfClassicData* data, uint8_t block_num, MfClassicBlock* block_data);
 
+bool mf_classic_is_sector_data_read(MfClassicData* data, uint8_t sector_num);
+
+void mf_classic_set_sector_data_not_read(MfClassicData* data);
+
 bool mf_classic_is_sector_read(MfClassicData* data, uint8_t sector_num);
 
 bool mf_classic_is_card_read(MfClassicData* data);
@@ -145,3 +175,16 @@ uint8_t mf_classic_read_card(
 uint8_t mf_classic_update_card(FuriHalNfcTxRxContext* tx_rx, MfClassicData* data);
 
 bool mf_classic_emulator(MfClassicEmulator* emulator, FuriHalNfcTxRxContext* tx_rx);
+
+bool mf_classic_write_block(
+    FuriHalNfcTxRxContext* tx_rx,
+    MfClassicBlock* src_block,
+    uint8_t block_num,
+    MfClassicKey key_type,
+    uint64_t key);
+
+bool mf_classic_write_sector(
+    FuriHalNfcTxRxContext* tx_rx,
+    MfClassicData* dest_data,
+    MfClassicData* src_data,
+    uint8_t sec_num);
diff --git a/lib/subghz/protocols/keeloq.c b/lib/subghz/protocols/keeloq.c
index ac2653381..6887218d7 100644
--- a/lib/subghz/protocols/keeloq.c
+++ b/lib/subghz/protocols/keeloq.c
@@ -660,6 +660,26 @@ static uint8_t subghz_protocol_keeloq_check_remote_controller_selector(
                     return 1;
                 }
                 break;
+            case KEELOQ_LEARNING_MAGIC_SERIAL_TYPE_2:
+                man = subghz_protocol_keeloq_common_magic_serial_type2_learning(
+                    fix, manufacture_code->key);
+                decrypt = subghz_protocol_keeloq_common_decrypt(hop, man);
+                if(subghz_protocol_keeloq_check_decrypt(instance, decrypt, btn, end_serial)) {
+                    *manufacture_name = furi_string_get_cstr(manufacture_code->name);
+                    mfname = *manufacture_name;
+                    return 1;
+                }
+                break;
+            case KEELOQ_LEARNING_MAGIC_SERIAL_TYPE_3:
+                man = subghz_protocol_keeloq_common_magic_serial_type3_learning(
+                    fix, manufacture_code->key);
+                decrypt = subghz_protocol_keeloq_common_decrypt(hop, man);
+                if(subghz_protocol_keeloq_check_decrypt(instance, decrypt, btn, end_serial)) {
+                    *manufacture_name = furi_string_get_cstr(manufacture_code->name);
+                    mfname = *manufacture_name;
+                    return 1;
+                }
+                break;
             case KEELOQ_LEARNING_UNKNOWN:
                 // Simple Learning
                 decrypt = subghz_protocol_keeloq_common_decrypt(hop, manufacture_code->key);
diff --git a/lib/subghz/protocols/keeloq_common.h b/lib/subghz/protocols/keeloq_common.h
index 258639e05..a6c0d346e 100644
--- a/lib/subghz/protocols/keeloq_common.h
+++ b/lib/subghz/protocols/keeloq_common.h
@@ -23,6 +23,8 @@
 #define KEELOQ_LEARNING_MAGIC_XOR_TYPE_1 4u
 #define KEELOQ_LEARNING_FAAC 5u
 #define KEELOQ_LEARNING_MAGIC_SERIAL_TYPE_1 6u
+#define KEELOQ_LEARNING_MAGIC_SERIAL_TYPE_2 7u
+#define KEELOQ_LEARNING_MAGIC_SERIAL_TYPE_3 8u
 
 /**
  * Simple Learning Encrypt
diff --git a/scripts/fbt/sdk/__init__.py b/scripts/fbt/sdk/__init__.py
new file mode 100644
index 000000000..27da5f7c8
--- /dev/null
+++ b/scripts/fbt/sdk/__init__.py
@@ -0,0 +1,44 @@
+from typing import Set, ClassVar
+from dataclasses import dataclass, field
+
+
+@dataclass(frozen=True)
+class ApiEntryFunction:
+    name: str
+    returns: str
+    params: str
+
+    csv_type: ClassVar[str] = "Function"
+
+    def dictify(self):
+        return dict(name=self.name, type=self.returns, params=self.params)
+
+
+@dataclass(frozen=True)
+class ApiEntryVariable:
+    name: str
+    var_type: str
+
+    csv_type: ClassVar[str] = "Variable"
+
+    def dictify(self):
+        return dict(name=self.name, type=self.var_type, params=None)
+
+
+@dataclass(frozen=True)
+class ApiHeader:
+    name: str
+
+    csv_type: ClassVar[str] = "Header"
+
+    def dictify(self):
+        return dict(name=self.name, type=None, params=None)
+
+
+@dataclass
+class ApiEntries:
+    # These are sets, to avoid creating duplicates when we have multiple
+    # declarations with same signature
+    functions: Set[ApiEntryFunction] = field(default_factory=set)
+    variables: Set[ApiEntryVariable] = field(default_factory=set)
+    headers: Set[ApiHeader] = field(default_factory=set)
diff --git a/scripts/fbt/sdk.py b/scripts/fbt/sdk/cache.py
similarity index 52%
rename from scripts/fbt/sdk.py
rename to scripts/fbt/sdk/cache.py
index 48f935de3..62d42798c 100644
--- a/scripts/fbt/sdk.py
+++ b/scripts/fbt/sdk/cache.py
@@ -4,284 +4,18 @@ import csv
 import operator
 
 from enum import Enum, auto
-from typing import List, Set, ClassVar, Any
-from dataclasses import dataclass, field
+from typing import Set, ClassVar, Any
+from dataclasses import dataclass
 
 from ansi.color import fg
 
-from cxxheaderparser.parser import CxxParser
-
-
-# 'Fixing' complaints about typedefs
-CxxParser._fundamentals.discard("wchar_t")
-
-from cxxheaderparser.types import (
-    EnumDecl,
-    Field,
-    ForwardDecl,
-    FriendDecl,
-    Function,
-    Method,
-    Typedef,
-    UsingAlias,
-    UsingDecl,
-    Variable,
-    Pointer,
-    Type,
-    PQName,
-    NameSpecifier,
-    FundamentalSpecifier,
-    Parameter,
-    Array,
-    Value,
-    Token,
-    FunctionType,
+from . import (
+    ApiEntries,
+    ApiEntryFunction,
+    ApiEntryVariable,
+    ApiHeader,
 )
 
-from cxxheaderparser.parserstate import (
-    State,
-    EmptyBlockState,
-    ClassBlockState,
-    ExternBlockState,
-    NamespaceBlockState,
-)
-
-
-@dataclass(frozen=True)
-class ApiEntryFunction:
-    name: str
-    returns: str
-    params: str
-
-    csv_type: ClassVar[str] = "Function"
-
-    def dictify(self):
-        return dict(name=self.name, type=self.returns, params=self.params)
-
-
-@dataclass(frozen=True)
-class ApiEntryVariable:
-    name: str
-    var_type: str
-
-    csv_type: ClassVar[str] = "Variable"
-
-    def dictify(self):
-        return dict(name=self.name, type=self.var_type, params=None)
-
-
-@dataclass(frozen=True)
-class ApiHeader:
-    name: str
-
-    csv_type: ClassVar[str] = "Header"
-
-    def dictify(self):
-        return dict(name=self.name, type=None, params=None)
-
-
-@dataclass
-class ApiEntries:
-    # These are sets, to avoid creating duplicates when we have multiple
-    # declarations with same signature
-    functions: Set[ApiEntryFunction] = field(default_factory=set)
-    variables: Set[ApiEntryVariable] = field(default_factory=set)
-    headers: Set[ApiHeader] = field(default_factory=set)
-
-
-class SymbolManager:
-    def __init__(self):
-        self.api = ApiEntries()
-        self.name_hashes = set()
-
-    # Calculate hash of name and raise exception if it already is in the set
-    def _name_check(self, name: str):
-        name_hash = gnu_sym_hash(name)
-        if name_hash in self.name_hashes:
-            raise Exception(f"Hash collision on {name}")
-        self.name_hashes.add(name_hash)
-
-    def add_function(self, function_def: ApiEntryFunction):
-        if function_def in self.api.functions:
-            return
-        self._name_check(function_def.name)
-        self.api.functions.add(function_def)
-
-    def add_variable(self, variable_def: ApiEntryVariable):
-        if variable_def in self.api.variables:
-            return
-        self._name_check(variable_def.name)
-        self.api.variables.add(variable_def)
-
-    def add_header(self, header: str):
-        self.api.headers.add(ApiHeader(header))
-
-
-def gnu_sym_hash(name: str):
-    h = 0x1505
-    for c in name:
-        h = (h << 5) + h + ord(c)
-    return str(hex(h))[-8:]
-
-
-class SdkCollector:
-    def __init__(self):
-        self.symbol_manager = SymbolManager()
-
-    def add_header_to_sdk(self, header: str):
-        self.symbol_manager.add_header(header)
-
-    def process_source_file_for_sdk(self, file_path: str):
-        visitor = SdkCxxVisitor(self.symbol_manager)
-        with open(file_path, "rt") as f:
-            content = f.read()
-        parser = CxxParser(file_path, content, visitor, None)
-        parser.parse()
-
-    def get_api(self):
-        return self.symbol_manager.api
-
-
-def stringify_array_dimension(size_descr):
-    if not size_descr:
-        return ""
-    return stringify_descr(size_descr)
-
-
-def stringify_array_descr(type_descr):
-    assert isinstance(type_descr, Array)
-    return (
-        stringify_descr(type_descr.array_of),
-        stringify_array_dimension(type_descr.size),
-    )
-
-
-def stringify_descr(type_descr):
-    if isinstance(type_descr, (NameSpecifier, FundamentalSpecifier)):
-        return type_descr.name
-    elif isinstance(type_descr, PQName):
-        return "::".join(map(stringify_descr, type_descr.segments))
-    elif isinstance(type_descr, Pointer):
-        # Hack
-        if isinstance(type_descr.ptr_to, FunctionType):
-            return stringify_descr(type_descr.ptr_to)
-        return f"{stringify_descr(type_descr.ptr_to)}*"
-    elif isinstance(type_descr, Type):
-        return (
-            f"{'const ' if type_descr.const else ''}"
-            f"{'volatile ' if type_descr.volatile else ''}"
-            f"{stringify_descr(type_descr.typename)}"
-        )
-    elif isinstance(type_descr, Parameter):
-        return stringify_descr(type_descr.type)
-    elif isinstance(type_descr, Array):
-        # Hack for 2d arrays
-        if isinstance(type_descr.array_of, Array):
-            argtype, dimension = stringify_array_descr(type_descr.array_of)
-            return (
-                f"{argtype}[{stringify_array_dimension(type_descr.size)}][{dimension}]"
-            )
-        return f"{stringify_descr(type_descr.array_of)}[{stringify_array_dimension(type_descr.size)}]"
-    elif isinstance(type_descr, Value):
-        return " ".join(map(stringify_descr, type_descr.tokens))
-    elif isinstance(type_descr, FunctionType):
-        return f"{stringify_descr(type_descr.return_type)} (*)({', '.join(map(stringify_descr, type_descr.parameters))})"
-    elif isinstance(type_descr, Token):
-        return type_descr.value
-    elif type_descr is None:
-        return ""
-    else:
-        raise Exception("unsupported type_descr: %s" % type_descr)
-
-
-class SdkCxxVisitor:
-    def __init__(self, symbol_manager: SymbolManager):
-        self.api = symbol_manager
-
-    def on_variable(self, state: State, v: Variable) -> None:
-        if not v.extern:
-            return
-
-        self.api.add_variable(
-            ApiEntryVariable(
-                stringify_descr(v.name),
-                stringify_descr(v.type),
-            )
-        )
-
-    def on_function(self, state: State, fn: Function) -> None:
-        if fn.inline or fn.has_body:
-            return
-
-        self.api.add_function(
-            ApiEntryFunction(
-                stringify_descr(fn.name),
-                stringify_descr(fn.return_type),
-                ", ".join(map(stringify_descr, fn.parameters))
-                + (", ..." if fn.vararg else ""),
-            )
-        )
-
-    def on_define(self, state: State, content: str) -> None:
-        pass
-
-    def on_pragma(self, state: State, content: str) -> None:
-        pass
-
-    def on_include(self, state: State, filename: str) -> None:
-        pass
-
-    def on_empty_block_start(self, state: EmptyBlockState) -> None:
-        pass
-
-    def on_empty_block_end(self, state: EmptyBlockState) -> None:
-        pass
-
-    def on_extern_block_start(self, state: ExternBlockState) -> None:
-        pass
-
-    def on_extern_block_end(self, state: ExternBlockState) -> None:
-        pass
-
-    def on_namespace_start(self, state: NamespaceBlockState) -> None:
-        pass
-
-    def on_namespace_end(self, state: NamespaceBlockState) -> None:
-        pass
-
-    def on_forward_decl(self, state: State, fdecl: ForwardDecl) -> None:
-        pass
-
-    def on_typedef(self, state: State, typedef: Typedef) -> None:
-        pass
-
-    def on_using_namespace(self, state: State, namespace: List[str]) -> None:
-        pass
-
-    def on_using_alias(self, state: State, using: UsingAlias) -> None:
-        pass
-
-    def on_using_declaration(self, state: State, using: UsingDecl) -> None:
-        pass
-
-    def on_enum(self, state: State, enum: EnumDecl) -> None:
-        pass
-
-    def on_class_start(self, state: ClassBlockState) -> None:
-        pass
-
-    def on_class_field(self, state: State, f: Field) -> None:
-        pass
-
-    def on_class_method(self, state: ClassBlockState, method: Method) -> None:
-        pass
-
-    def on_class_friend(self, state: ClassBlockState, friend: FriendDecl) -> None:
-        pass
-
-    def on_class_end(self, state: ClassBlockState) -> None:
-        pass
-
 
 @dataclass(frozen=True)
 class SdkVersion:
diff --git a/scripts/fbt/sdk/collector.py b/scripts/fbt/sdk/collector.py
new file mode 100644
index 000000000..578a8c7a6
--- /dev/null
+++ b/scripts/fbt/sdk/collector.py
@@ -0,0 +1,238 @@
+from typing import List
+
+from cxxheaderparser.parser import CxxParser
+from . import (
+    ApiEntries,
+    ApiEntryFunction,
+    ApiEntryVariable,
+    ApiHeader,
+)
+
+
+# 'Fixing' complaints about typedefs
+CxxParser._fundamentals.discard("wchar_t")
+
+from cxxheaderparser.types import (
+    EnumDecl,
+    Field,
+    ForwardDecl,
+    FriendDecl,
+    Function,
+    Method,
+    Typedef,
+    UsingAlias,
+    UsingDecl,
+    Variable,
+    Pointer,
+    Type,
+    PQName,
+    NameSpecifier,
+    FundamentalSpecifier,
+    Parameter,
+    Array,
+    Value,
+    Token,
+    FunctionType,
+)
+
+from cxxheaderparser.parserstate import (
+    State,
+    EmptyBlockState,
+    ClassBlockState,
+    ExternBlockState,
+    NamespaceBlockState,
+)
+
+
+class SymbolManager:
+    def __init__(self):
+        self.api = ApiEntries()
+        self.name_hashes = set()
+
+    # Calculate hash of name and raise exception if it already is in the set
+    def _name_check(self, name: str):
+        name_hash = gnu_sym_hash(name)
+        if name_hash in self.name_hashes:
+            raise Exception(f"Hash collision on {name}")
+        self.name_hashes.add(name_hash)
+
+    def add_function(self, function_def: ApiEntryFunction):
+        if function_def in self.api.functions:
+            return
+        self._name_check(function_def.name)
+        self.api.functions.add(function_def)
+
+    def add_variable(self, variable_def: ApiEntryVariable):
+        if variable_def in self.api.variables:
+            return
+        self._name_check(variable_def.name)
+        self.api.variables.add(variable_def)
+
+    def add_header(self, header: str):
+        self.api.headers.add(ApiHeader(header))
+
+
+def gnu_sym_hash(name: str):
+    h = 0x1505
+    for c in name:
+        h = (h << 5) + h + ord(c)
+    return str(hex(h))[-8:]
+
+
+class SdkCollector:
+    def __init__(self):
+        self.symbol_manager = SymbolManager()
+
+    def add_header_to_sdk(self, header: str):
+        self.symbol_manager.add_header(header)
+
+    def process_source_file_for_sdk(self, file_path: str):
+        visitor = SdkCxxVisitor(self.symbol_manager)
+        with open(file_path, "rt") as f:
+            content = f.read()
+        parser = CxxParser(file_path, content, visitor, None)
+        parser.parse()
+
+    def get_api(self):
+        return self.symbol_manager.api
+
+
+def stringify_array_dimension(size_descr):
+    if not size_descr:
+        return ""
+    return stringify_descr(size_descr)
+
+
+def stringify_array_descr(type_descr):
+    assert isinstance(type_descr, Array)
+    return (
+        stringify_descr(type_descr.array_of),
+        stringify_array_dimension(type_descr.size),
+    )
+
+
+def stringify_descr(type_descr):
+    if isinstance(type_descr, (NameSpecifier, FundamentalSpecifier)):
+        return type_descr.name
+    elif isinstance(type_descr, PQName):
+        return "::".join(map(stringify_descr, type_descr.segments))
+    elif isinstance(type_descr, Pointer):
+        # Hack
+        if isinstance(type_descr.ptr_to, FunctionType):
+            return stringify_descr(type_descr.ptr_to)
+        return f"{stringify_descr(type_descr.ptr_to)}*"
+    elif isinstance(type_descr, Type):
+        return (
+            f"{'const ' if type_descr.const else ''}"
+            f"{'volatile ' if type_descr.volatile else ''}"
+            f"{stringify_descr(type_descr.typename)}"
+        )
+    elif isinstance(type_descr, Parameter):
+        return stringify_descr(type_descr.type)
+    elif isinstance(type_descr, Array):
+        # Hack for 2d arrays
+        if isinstance(type_descr.array_of, Array):
+            argtype, dimension = stringify_array_descr(type_descr.array_of)
+            return (
+                f"{argtype}[{stringify_array_dimension(type_descr.size)}][{dimension}]"
+            )
+        return f"{stringify_descr(type_descr.array_of)}[{stringify_array_dimension(type_descr.size)}]"
+    elif isinstance(type_descr, Value):
+        return " ".join(map(stringify_descr, type_descr.tokens))
+    elif isinstance(type_descr, FunctionType):
+        return f"{stringify_descr(type_descr.return_type)} (*)({', '.join(map(stringify_descr, type_descr.parameters))})"
+    elif isinstance(type_descr, Token):
+        return type_descr.value
+    elif type_descr is None:
+        return ""
+    else:
+        raise Exception("unsupported type_descr: %s" % type_descr)
+
+
+class SdkCxxVisitor:
+    def __init__(self, symbol_manager: SymbolManager):
+        self.api = symbol_manager
+
+    def on_variable(self, state: State, v: Variable) -> None:
+        if not v.extern:
+            return
+
+        self.api.add_variable(
+            ApiEntryVariable(
+                stringify_descr(v.name),
+                stringify_descr(v.type),
+            )
+        )
+
+    def on_function(self, state: State, fn: Function) -> None:
+        if fn.inline or fn.has_body:
+            return
+
+        self.api.add_function(
+            ApiEntryFunction(
+                stringify_descr(fn.name),
+                stringify_descr(fn.return_type),
+                ", ".join(map(stringify_descr, fn.parameters))
+                + (", ..." if fn.vararg else ""),
+            )
+        )
+
+    def on_define(self, state: State, content: str) -> None:
+        pass
+
+    def on_pragma(self, state: State, content: str) -> None:
+        pass
+
+    def on_include(self, state: State, filename: str) -> None:
+        pass
+
+    def on_empty_block_start(self, state: EmptyBlockState) -> None:
+        pass
+
+    def on_empty_block_end(self, state: EmptyBlockState) -> None:
+        pass
+
+    def on_extern_block_start(self, state: ExternBlockState) -> None:
+        pass
+
+    def on_extern_block_end(self, state: ExternBlockState) -> None:
+        pass
+
+    def on_namespace_start(self, state: NamespaceBlockState) -> None:
+        pass
+
+    def on_namespace_end(self, state: NamespaceBlockState) -> None:
+        pass
+
+    def on_forward_decl(self, state: State, fdecl: ForwardDecl) -> None:
+        pass
+
+    def on_typedef(self, state: State, typedef: Typedef) -> None:
+        pass
+
+    def on_using_namespace(self, state: State, namespace: List[str]) -> None:
+        pass
+
+    def on_using_alias(self, state: State, using: UsingAlias) -> None:
+        pass
+
+    def on_using_declaration(self, state: State, using: UsingDecl) -> None:
+        pass
+
+    def on_enum(self, state: State, enum: EnumDecl) -> None:
+        pass
+
+    def on_class_start(self, state: ClassBlockState) -> None:
+        pass
+
+    def on_class_field(self, state: State, f: Field) -> None:
+        pass
+
+    def on_class_method(self, state: ClassBlockState, method: Method) -> None:
+        pass
+
+    def on_class_friend(self, state: ClassBlockState, friend: FriendDecl) -> None:
+        pass
+
+    def on_class_end(self, state: ClassBlockState) -> None:
+        pass
diff --git a/scripts/fbt_tools/fbt_extapps.py b/scripts/fbt_tools/fbt_extapps.py
index 5a5dab572..38c943cc5 100644
--- a/scripts/fbt_tools/fbt_extapps.py
+++ b/scripts/fbt_tools/fbt_extapps.py
@@ -8,7 +8,7 @@ import os
 import pathlib
 from fbt.elfmanifest import assemble_manifest_data
 from fbt.appmanifest import FlipperApplication, FlipperManifestException
-from fbt.sdk import SdkCache
+from fbt.sdk.cache import SdkCache
 import itertools
 from ansi.color import fg
 
diff --git a/scripts/fbt_tools/fbt_sdk.py b/scripts/fbt_tools/fbt_sdk.py
index 0b6e22de5..f1f55bdb8 100644
--- a/scripts/fbt_tools/fbt_sdk.py
+++ b/scripts/fbt_tools/fbt_sdk.py
@@ -4,7 +4,7 @@ from SCons.Action import Action
 from SCons.Errors import UserError
 
 # from SCons.Scanner import C
-from SCons.Script import Mkdir, Copy, Delete, Entry
+from SCons.Script import Entry
 from SCons.Util import LogicalLines
 
 import os.path
@@ -12,7 +12,8 @@ import posixpath
 import pathlib
 import json
 
-from fbt.sdk import SdkCollector, SdkCache
+from fbt.sdk.collector import SdkCollector
+from fbt.sdk.cache import SdkCache
 
 
 def ProcessSdkDepends(env, filename):
@@ -49,15 +50,19 @@ def prebuild_sdk_create_origin_file(target, source, env):
 
 
 class SdkMeta:
-    def __init__(self, env):
+    def __init__(self, env, tree_builder: "SdkTreeBuilder"):
         self.env = env
+        self.treebuilder = tree_builder
 
     def save_to(self, json_manifest_path: str):
         meta_contents = {
-            "sdk_symbols": self.env["SDK_DEFINITION"].name,
+            "sdk_symbols": self.treebuilder.build_sdk_file_path(
+                self.env["SDK_DEFINITION"].path
+            ),
             "cc_args": self._wrap_scons_vars("$CCFLAGS $_CCCOMCOM"),
             "cpp_args": self._wrap_scons_vars("$CXXFLAGS $CCFLAGS $_CCCOMCOM"),
             "linker_args": self._wrap_scons_vars("$LINKFLAGS"),
+            "linker_script": self.env.subst("${LINKER_SCRIPT_PATH}"),
         }
         with open(json_manifest_path, "wt") as f:
             json.dump(meta_contents, f, indent=4)
@@ -68,6 +73,8 @@ class SdkMeta:
 
 
 class SdkTreeBuilder:
+    SDK_DIR_SUBST = "SDK_ROOT_DIR"
+
     def __init__(self, env, target, source) -> None:
         self.env = env
         self.target = target
@@ -88,6 +95,8 @@ class SdkTreeBuilder:
             self.header_depends = list(
                 filter(lambda fname: fname.endswith(".h"), depends.split()),
             )
+            self.header_depends.append(self.env.subst("${LINKER_SCRIPT_PATH}"))
+            self.header_depends.append(self.env.subst("${SDK_DEFINITION}"))
             self.header_dirs = sorted(
                 set(map(os.path.normpath, map(os.path.dirname, self.header_depends)))
             )
@@ -102,17 +111,33 @@ class SdkTreeBuilder:
         )
 
         sdk_dirs = ", ".join(f"'{dir}'" for dir in self.header_dirs)
-        for dir in full_fw_paths:
-            if dir in sdk_dirs:
-                filtered_paths.append(
-                    posixpath.normpath(posixpath.join(self.target_sdk_dir_name, dir))
-                )
+        filtered_paths.extend(
+            map(
+                self.build_sdk_file_path,
+                filter(lambda path: path in sdk_dirs, full_fw_paths),
+            )
+        )
 
         sdk_env = self.env.Clone()
-        sdk_env.Replace(CPPPATH=filtered_paths)
-        meta = SdkMeta(sdk_env)
+        sdk_env.Replace(
+            CPPPATH=filtered_paths,
+            LINKER_SCRIPT=self.env.subst("${APP_LINKER_SCRIPT}"),
+            ORIG_LINKER_SCRIPT_PATH=self.env["LINKER_SCRIPT_PATH"],
+            LINKER_SCRIPT_PATH=self.build_sdk_file_path("${ORIG_LINKER_SCRIPT_PATH}"),
+        )
+
+        meta = SdkMeta(sdk_env, self)
         meta.save_to(self.target[0].path)
 
+    def build_sdk_file_path(self, orig_path: str) -> str:
+        return posixpath.normpath(
+            posixpath.join(
+                self.SDK_DIR_SUBST,
+                self.target_sdk_dir_name,
+                orig_path,
+            )
+        ).replace("\\", "/")
+
     def emitter(self, target, source, env):
         target_folder = target[0]
         target = [target_folder.File("sdk.opts")]
@@ -128,8 +153,6 @@ class SdkTreeBuilder:
         for sdkdir in dirs_to_create:
             os.makedirs(sdkdir, exist_ok=True)
 
-        shutil.copy2(self.env["SDK_DEFINITION"].path, self.sdk_root_dir.path)
-
         for header in self.header_depends:
             shutil.copy2(header, self.sdk_deploy_dir.File(header).path)
 
diff --git a/scripts/sconsdist.py b/scripts/sconsdist.py
index ce9f65bc6..4cbea7bd9 100644
--- a/scripts/sconsdist.py
+++ b/scripts/sconsdist.py
@@ -48,48 +48,52 @@ class Main(App):
         )
         self.parser_copy.set_defaults(func=self.copy)
 
-    def get_project_filename(self, project, filetype):
+    def get_project_file_name(self, project: ProjectDir, filetype: str) -> str:
         #  Temporary fix
         project_name = project.project
-        if project_name == "firmware":
-            if filetype == "zip":
-                project_name = "sdk"
-            elif filetype != "elf":
-                project_name = "full"
+        if project_name == "firmware" and filetype != "elf":
+            project_name = "full"
 
-        return f"{self.DIST_FILE_PREFIX}{self.target}-{project_name}-{self.args.suffix}.{filetype}"
+        return self.get_dist_file_name(project_name, filetype)
 
-    def get_dist_filepath(self, filename):
+    def get_dist_file_name(self, dist_artifact_type: str, filetype: str) -> str:
+        return f"{self.DIST_FILE_PREFIX}{self.target}-{dist_artifact_type}-{self.args.suffix}.{filetype}"
+
+    def get_dist_file_path(self, filename: str) -> str:
         return join(self.output_dir_path, filename)
 
-    def copy_single_project(self, project):
+    def copy_single_project(self, project: ProjectDir) -> None:
         obj_directory = join("build", project.dir)
 
         for filetype in ("elf", "bin", "dfu", "json"):
             if exists(src_file := join(obj_directory, f"{project.project}.{filetype}")):
                 shutil.copyfile(
                     src_file,
-                    self.get_dist_filepath(
-                        self.get_project_filename(project, filetype)
+                    self.get_dist_file_path(
+                        self.get_project_file_name(project, filetype)
                     ),
                 )
-            if exists(sdk_folder := join(obj_directory, "sdk")):
-                with zipfile.ZipFile(
-                    self.get_dist_filepath(self.get_project_filename(project, "zip")),
-                    "w",
-                    zipfile.ZIP_DEFLATED,
-                ) as zf:
-                    for root, dirs, files in walk(sdk_folder):
-                        for file in files:
-                            zf.write(
-                                join(root, file),
-                                relpath(
-                                    join(root, file),
-                                    sdk_folder,
-                                ),
-                            )
+        for foldertype in ("sdk", "lib"):
+            if exists(sdk_folder := join(obj_directory, foldertype)):
+                self.package_zip(foldertype, sdk_folder)
 
-    def copy(self):
+    def package_zip(self, foldertype, sdk_folder):
+        with zipfile.ZipFile(
+            self.get_dist_file_path(self.get_dist_file_name(foldertype, "zip")),
+            "w",
+            zipfile.ZIP_DEFLATED,
+        ) as zf:
+            for root, _, files in walk(sdk_folder):
+                for file in files:
+                    zf.write(
+                        join(root, file),
+                        relpath(
+                            join(root, file),
+                            sdk_folder,
+                        ),
+                    )
+
+    def copy(self) -> int:
         self.projects = dict(
             map(
                 lambda pd: (pd.project, pd),
@@ -144,12 +148,12 @@ class Main(App):
                 "-t",
                 self.target,
                 "--dfu",
-                self.get_dist_filepath(
-                    self.get_project_filename(self.projects["firmware"], "dfu")
+                self.get_dist_file_path(
+                    self.get_project_file_name(self.projects["firmware"], "dfu")
                 ),
                 "--stage",
-                self.get_dist_filepath(
-                    self.get_project_filename(self.projects["updater"], "bin")
+                self.get_dist_file_path(
+                    self.get_project_file_name(self.projects["updater"], "bin")
                 ),
             ]
             if self.args.resources:
diff --git a/scripts/toolchain/windows-toolchain-download.ps1 b/scripts/toolchain/windows-toolchain-download.ps1
index 370f1a14a..aaed89856 100644
--- a/scripts/toolchain/windows-toolchain-download.ps1
+++ b/scripts/toolchain/windows-toolchain-download.ps1
@@ -23,12 +23,12 @@ if (!(Test-Path -LiteralPath "$repo_root\toolchain")) {
     New-Item "$repo_root\toolchain" -ItemType Directory
 }
 
-Write-Host -NoNewline "Unziping Windows toolchain.."
+Write-Host -NoNewline "Extracting Windows toolchain.."
 Add-Type -Assembly "System.IO.Compression.Filesystem"
-[System.IO.Compression.ZipFile]::ExtractToDirectory("$toolchain_zip", "$repo_root\")
+[System.IO.Compression.ZipFile]::ExtractToDirectory("$repo_root\$toolchain_zip", "$repo_root\")
 Move-Item -Path "$repo_root\$toolchain_dir" -Destination "$repo_root\toolchain\x86_64-windows"
 Write-Host "done!"
 
-Write-Host -NoNewline "Clearing temporary files.."
+Write-Host -NoNewline "Cleaning up temporary files.."
 Remove-Item -LiteralPath "$repo_root\$toolchain_zip" -Force
 Write-Host "done!"
diff --git a/site_scons/extapps.scons b/site_scons/extapps.scons
index ee317be3b..90d228e58 100644
--- a/site_scons/extapps.scons
+++ b/site_scons/extapps.scons
@@ -21,7 +21,7 @@ appenv = ENV.Clone(
 )
 
 appenv.Replace(
-    LINKER_SCRIPT="application_ext",
+    LINKER_SCRIPT=appenv.subst("$APP_LINKER_SCRIPT"),
 )
 
 appenv.AppendUnique(
diff --git a/site_scons/firmwareopts.scons b/site_scons/firmwareopts.scons
index f04b55cdd..9f707b4d8 100644
--- a/site_scons/firmwareopts.scons
+++ b/site_scons/firmwareopts.scons
@@ -32,12 +32,27 @@ else:
         ],
     )
 
-ENV.Append(
+ENV.AppendUnique(
     LINKFLAGS=[
-        "-Tfirmware/targets/f${TARGET_HW}/${LINKER_SCRIPT}.ld",
+        "-specs=nano.specs",
+        "-specs=nosys.specs",
+        "-Wl,--gc-sections",
+        "-Wl,--undefined=uxTopUsedPriority",
+        "-Wl,--wrap,_malloc_r",
+        "-Wl,--wrap,_free_r",
+        "-Wl,--wrap,_calloc_r",
+        "-Wl,--wrap,_realloc_r",
+        "-n",
+        "-Xlinker",
+        "-Map=${TARGET}.map",
+        "-T${LINKER_SCRIPT_PATH}",
     ],
 )
 
+ENV.SetDefault(
+    LINKER_SCRIPT_PATH="firmware/targets/f${TARGET_HW}/${LINKER_SCRIPT}.ld",
+)
+
 if ENV["FIRMWARE_BUILD_CFG"] == "updater":
     ENV.Append(
         IMAGE_BASE_ADDRESS="0x20000000",
@@ -47,4 +62,5 @@ else:
     ENV.Append(
         IMAGE_BASE_ADDRESS="0x8000000",
         LINKER_SCRIPT="stm32wb55xx_flash",
+        APP_LINKER_SCRIPT="application_ext",
     )