diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2b36df350..62f5e25e9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,7 +29,9 @@
   - Add older qFlipper install demos for windows and macos (by @DXVVAY & @grugnoymeme)
   - OFW: New layout for es-LA (by @IRecabarren)
 - OFW: Dolphin: Happy mode in Desktop settings (by @portasynthinca3)
-- OFW: GUI: Add up and down button drawing functions to GUI elements (by @DerSkythe)
+- GUI:
+  - OFW: Add up and down button drawing functions to GUI elements (by @DerSkythe)
+  - OFW: Added one new function for drawing mirrored xbm bitmaps (by @RebornedBrain)
 - OFW: RPC: Support 5V on GPIO control for ext. modules (by @gsurkov)
 - OFW: Toolbox: Proper integer parsing library `strint` (by @portasynthinca3)
 - OFW: Furi: Put errno into TCB (by @portasynthinca3)
@@ -55,9 +57,10 @@
 - NFC:
   - Added 6 new Mifare Classic keys from Bulgaria Hotel (#216 by @z3r0l1nk)
   - NDEF parser supports NTAG I2C Plus 1k and 2k chips too (by @RocketGod-git)
-  - OFW: Rename 'Detect Reader' to 'Extract MF Keys' (by @bettse)
+  - OFW/UL: Rename 'Detect Reader' to 'Extract MFC Keys' (by @bettse & @xMasterX)
   - OFW: Plantain parser improvements (by @assasinfil)
   - OFW: Moscow social card parser (by @assasinfil)
+  - OFW: Fixes and improvements to iso14443_4a listener and poller (by @RebornedBrain)
 - Sub-GHz:
   - UL: Frequency analyzer fixes and improvements (by @xMasterX):
     - Enforce int module (like in OFW) usage due to lack of required hardware on external boards (PathIsolate (+rf switch for multiple paths)) and incorrect usage and/or understanding the purpose of frequency analyzer app by users, it should be used only to get frequency of the remote placed around 1-10cm around flipper's left corner
diff --git a/applications/drivers/subghz/cc1101_ext/cc1101_ext.c b/applications/drivers/subghz/cc1101_ext/cc1101_ext.c
index f093b9f28..dae8819ab 100644
--- a/applications/drivers/subghz/cc1101_ext/cc1101_ext.c
+++ b/applications/drivers/subghz/cc1101_ext/cc1101_ext.c
@@ -7,7 +7,6 @@
 #include <furi_hal_interrupt.h>
 #include <furi_hal_resources.h>
 #include <furi_hal_bus.h>
-#include <furi_hal_subghz.h>
 
 #include <stm32wbxx_ll_dma.h>
 #include <furi_hal_cortex.h>
@@ -16,12 +15,12 @@
 #include <cc1101.h>
 #include <stdio.h>
 
-#include <momentum/momentum.h>
+#include <momentum/settings.h>
 
 #define TAG "SubGhzDeviceCc1101Ext"
 
-#define SUBGHZ_DEVICE_CC1101_EXT_TX_GPIO          (&gpio_ext_pb2)
-#define SUBGHZ_DEVICE_CC1101_EXT_E07M20S_AMP_GPIO &gpio_ext_pc3
+#define SUBGHZ_DEVICE_CC1101_EXT_TX_GPIO      (&gpio_ext_pb2)
+#define SUBGHZ_DEVICE_CC1101_EXT_E07_AMP_GPIO &gpio_ext_pc3
 
 #define SUBGHZ_DEVICE_CC1101_CONFIG_VER 1
 
@@ -94,9 +93,9 @@ typedef struct {
     const GpioPin* g0_pin;
     SubGhzDeviceCC1101ExtAsyncTx async_tx;
     SubGhzDeviceCC1101ExtAsyncRx async_rx;
+    bool amp_and_leds;
     bool extended_range;
     bool bypass_region;
-    bool power_amp;
 } SubGhzDeviceCC1101Ext;
 
 static SubGhzDeviceCC1101Ext* subghz_device_cc1101_ext = NULL;
@@ -221,14 +220,14 @@ bool subghz_device_cc1101_ext_alloc(SubGhzDeviceConf* conf) {
     subghz_device_cc1101_ext->regulation = SubGhzDeviceCC1101ExtRegulationTxRx;
     subghz_device_cc1101_ext->async_mirror_pin = NULL;
     subghz_device_cc1101_ext->g0_pin = SUBGHZ_DEVICE_CC1101_EXT_TX_GPIO;
+    subghz_device_cc1101_ext->amp_and_leds = false;
     subghz_device_cc1101_ext->extended_range = false;
     subghz_device_cc1101_ext->bypass_region = false;
-    subghz_device_cc1101_ext->power_amp = false;
     if(conf) {
         if(conf->ver == SUBGHZ_DEVICE_CC1101_CONFIG_VER) {
+            subghz_device_cc1101_ext->amp_and_leds = conf->amp_and_leds;
             subghz_device_cc1101_ext->extended_range = conf->extended_range;
             subghz_device_cc1101_ext->bypass_region = conf->bypass_region;
-            subghz_device_cc1101_ext->power_amp = conf->power_amp;
         } else {
             FURI_LOG_E(TAG, "Config version mismatch");
         }
@@ -248,10 +247,9 @@ bool subghz_device_cc1101_ext_alloc(SubGhzDeviceConf* conf) {
     }
 
     furi_hal_spi_bus_handle_init(subghz_device_cc1101_ext->spi_bus_handle);
-    if(subghz_device_cc1101_ext->power_amp) {
-        furi_hal_gpio_init_simple(
-            SUBGHZ_DEVICE_CC1101_EXT_E07M20S_AMP_GPIO, GpioModeOutputPushPull);
-        furi_hal_gpio_write(SUBGHZ_DEVICE_CC1101_EXT_E07M20S_AMP_GPIO, 0);
+    if(subghz_device_cc1101_ext->amp_and_leds) {
+        furi_hal_gpio_init_simple(SUBGHZ_DEVICE_CC1101_EXT_E07_AMP_GPIO, GpioModeOutputPushPull);
+        furi_hal_gpio_write(SUBGHZ_DEVICE_CC1101_EXT_E07_AMP_GPIO, 0);
     }
 
     return subghz_device_cc1101_ext_check_init();
@@ -263,7 +261,8 @@ void subghz_device_cc1101_ext_free(void) {
     furi_hal_spi_bus_handle_deinit(subghz_device_cc1101_ext->spi_bus_handle);
 
     // resetting the CS pins to floating
-    if(momentum_settings.spi_nrf24_handle == SpiDefault || subghz_device_cc1101_ext->power_amp) {
+    if(momentum_settings.spi_nrf24_handle == SpiDefault ||
+       subghz_device_cc1101_ext->amp_and_leds) {
         furi_hal_gpio_init_simple(&gpio_ext_pc3, GpioModeAnalog);
     } else if(momentum_settings.spi_nrf24_handle == SpiExtra) {
         furi_hal_gpio_init_simple(&gpio_ext_pa4, GpioModeAnalog);
@@ -442,6 +441,7 @@ void subghz_device_cc1101_ext_reset(void) {
     // Reset GDO2 (!TX/RX) to floating state
     cc1101_write_reg(
         subghz_device_cc1101_ext->spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHighImpedance);
+
     furi_hal_spi_release(subghz_device_cc1101_ext->spi_bus_handle);
 }
 
@@ -455,8 +455,8 @@ void subghz_device_cc1101_ext_idle(void) {
     cc1101_write_reg(
         subghz_device_cc1101_ext->spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHighImpedance);
     furi_hal_spi_release(subghz_device_cc1101_ext->spi_bus_handle);
-    if(subghz_device_cc1101_ext->power_amp) {
-        furi_hal_gpio_write(SUBGHZ_DEVICE_CC1101_EXT_E07M20S_AMP_GPIO, 0);
+    if(subghz_device_cc1101_ext->amp_and_leds) {
+        furi_hal_gpio_write(SUBGHZ_DEVICE_CC1101_EXT_E07_AMP_GPIO, 0);
     }
 }
 
@@ -471,8 +471,8 @@ void subghz_device_cc1101_ext_rx(void) {
         subghz_device_cc1101_ext->spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHW | CC1101_IOCFG_INV);
 
     furi_hal_spi_release(subghz_device_cc1101_ext->spi_bus_handle);
-    if(subghz_device_cc1101_ext->power_amp) {
-        furi_hal_gpio_write(SUBGHZ_DEVICE_CC1101_EXT_E07M20S_AMP_GPIO, 0);
+    if(subghz_device_cc1101_ext->amp_and_leds) {
+        furi_hal_gpio_write(SUBGHZ_DEVICE_CC1101_EXT_E07_AMP_GPIO, 0);
     }
 }
 
@@ -486,8 +486,8 @@ bool subghz_device_cc1101_ext_tx(void) {
     // Go GDO2 (!TX/RX) to low (TX state)
     cc1101_write_reg(subghz_device_cc1101_ext->spi_bus_handle, CC1101_IOCFG2, CC1101IocfgHW);
     furi_hal_spi_release(subghz_device_cc1101_ext->spi_bus_handle);
-    if(subghz_device_cc1101_ext->power_amp) {
-        furi_hal_gpio_write(SUBGHZ_DEVICE_CC1101_EXT_E07M20S_AMP_GPIO, 1);
+    if(subghz_device_cc1101_ext->amp_and_leds) {
+        furi_hal_gpio_write(SUBGHZ_DEVICE_CC1101_EXT_E07_AMP_GPIO, 1);
     }
     return true;
 }
diff --git a/applications/main/nfc/helpers/protocol_support/mf_classic/mf_classic.c b/applications/main/nfc/helpers/protocol_support/mf_classic/mf_classic.c
index 4fece16be..5f3592c4b 100644
--- a/applications/main/nfc/helpers/protocol_support/mf_classic/mf_classic.c
+++ b/applications/main/nfc/helpers/protocol_support/mf_classic/mf_classic.c
@@ -117,7 +117,7 @@ static void nfc_scene_read_menu_on_enter_mf_classic(NfcApp* instance) {
     if(!mf_classic_is_card_read(data)) {
         submenu_add_item(
             submenu,
-            "Extract MF Keys",
+            "Extract MFC Keys",
             SubmenuIndexDetectReader,
             nfc_protocol_support_common_submenu_callback,
             instance);
@@ -155,7 +155,7 @@ static void nfc_scene_saved_menu_on_enter_mf_classic(NfcApp* instance) {
     if(!mf_classic_is_card_read(data)) {
         submenu_add_item(
             submenu,
-            "Extract MF Keys",
+            "Extract MFC Keys",
             SubmenuIndexDetectReader,
             nfc_protocol_support_common_submenu_callback,
             instance);
diff --git a/applications/main/nfc/scenes/nfc_scene_start.c b/applications/main/nfc/scenes/nfc_scene_start.c
index 9d6fc66eb..01cf35e41 100644
--- a/applications/main/nfc/scenes/nfc_scene_start.c
+++ b/applications/main/nfc/scenes/nfc_scene_start.c
@@ -30,7 +30,7 @@ void nfc_scene_start_on_enter(void* context) {
     submenu_add_item(submenu, "Read", SubmenuIndexRead, nfc_scene_start_submenu_callback, nfc);
     submenu_add_item(
         submenu,
-        "Extract MF Keys",
+        "Extract MFC Keys",
         SubmenuIndexDetectReader,
         nfc_scene_start_submenu_callback,
         nfc);
diff --git a/applications/main/subghz/scenes/subghz_scene_radio_settings.c b/applications/main/subghz/scenes/subghz_scene_radio_settings.c
index 56bc1ad7f..5031731eb 100644
--- a/applications/main/subghz/scenes/subghz_scene_radio_settings.c
+++ b/applications/main/subghz/scenes/subghz_scene_radio_settings.c
@@ -14,8 +14,8 @@ const uint32_t radio_device_value[RADIO_DEVICE_COUNT] = {
     SubGhzRadioDeviceTypeExternalCC1101,
 };
 
-#define TIMESTAMP_NAMES_COUNT 2
-const char* const timestamp_names_text[TIMESTAMP_NAMES_COUNT] = {
+#define ON_OFF_COUNT 2
+const char* const on_off_text[ON_OFF_COUNT] = {
     "OFF",
     "ON",
 };
@@ -139,7 +139,7 @@ static void subghz_scene_receiver_config_set_protocol_file_names(VariableItem* i
     SubGhz* subghz = variable_item_get_context(item);
     uint8_t index = variable_item_get_current_value_index(item);
 
-    variable_item_set_current_value_text(item, timestamp_names_text[index]);
+    variable_item_set_current_value_text(item, on_off_text[index]);
 
     subghz->last_settings->protocol_file_names = (index == 1);
     subghz_last_settings_save(subghz->last_settings);
@@ -183,12 +183,12 @@ void subghz_scene_radio_settings_on_enter(void* context) {
     item = variable_item_list_add(
         variable_item_list,
         "Protocol Names",
-        TIMESTAMP_NAMES_COUNT,
+        ON_OFF_COUNT,
         subghz_scene_receiver_config_set_protocol_file_names,
         subghz);
     value_index = subghz->last_settings->protocol_file_names;
     variable_item_set_current_value_index(item, value_index);
-    variable_item_set_current_value_text(item, timestamp_names_text[value_index]);
+    variable_item_set_current_value_text(item, on_off_text[value_index]);
 
     item = variable_item_list_add(
         variable_item_list,
diff --git a/applications/services/gui/canvas.c b/applications/services/gui/canvas.c
index 327314a0f..bc74fbf1a 100644
--- a/applications/services/gui/canvas.c
+++ b/applications/services/gui/canvas.c
@@ -561,6 +561,19 @@ void canvas_draw_xbm(
     canvas_draw_u8g2_bitmap(&canvas->fb, x, y, width, height, bitmap, IconRotation0);
 }
 
+void canvas_draw_xbm_mirrored(
+    Canvas* canvas,
+    int32_t x,
+    int32_t y,
+    size_t width,
+    size_t height,
+    const uint8_t* bitmap_data) {
+    furi_check(canvas);
+    x += canvas->offset_x;
+    y += canvas->offset_y;
+    canvas_draw_u8g2_bitmap(&canvas->fb, x, y, width, height, bitmap_data, IconRotation180);
+}
+
 void canvas_draw_glyph(Canvas* canvas, int32_t x, int32_t y, uint16_t ch) {
     furi_check(canvas);
     x += canvas->offset_x;
diff --git a/applications/services/gui/canvas.h b/applications/services/gui/canvas.h
index 8343be2ae..3f79c5695 100644
--- a/applications/services/gui/canvas.h
+++ b/applications/services/gui/canvas.h
@@ -296,6 +296,23 @@ void canvas_draw_xbm(
     size_t height,
     const uint8_t* bitmap);
 
+/** Draw mirrored XBM bitmap
+ *
+ * @param      canvas  Canvas instance
+ * @param      x       x coordinate
+ * @param      y       y coordinate
+ * @param[in]  width   bitmap width
+ * @param[in]  height  bitmap height
+ * @param      bitmap  pointer to XBM bitmap data
+ */
+void canvas_draw_xbm_mirrored(
+    Canvas* canvas,
+    int32_t x,
+    int32_t y,
+    size_t width,
+    size_t height,
+    const uint8_t* bitmap_data);
+
 /** Draw dot at x,y
  *
  * @param      canvas  Canvas instance
diff --git a/lib/nfc/helpers/iso14443_4_layer.c b/lib/nfc/helpers/iso14443_4_layer.c
index 933612df8..b3570fd7e 100644
--- a/lib/nfc/helpers/iso14443_4_layer.c
+++ b/lib/nfc/helpers/iso14443_4_layer.c
@@ -2,22 +2,50 @@
 
 #include <furi.h>
 
-#define ISO14443_4_BLOCK_PCB   (1U << 1)
-#define ISO14443_4_BLOCK_PCB_I (0U)
-#define ISO14443_4_BLOCK_PCB_R (5U << 5)
-#define ISO14443_4_BLOCK_PCB_S (3U << 6)
-
+// EMV Specific masks
 #define ISO14443_4_BLOCK_PCB_I_        (0U << 6)
 #define ISO14443_4_BLOCK_PCB_R_        (2U << 6)
 #define ISO14443_4_BLOCK_PCB_TYPE_MASK (3U << 6)
+#define ISO14443_4_BLOCK_PCB_S_WTX     (3U << 4)
+#define ISO14443_4_BLOCK_PCB_S         (3U << 6)
+//
 
-#define ISO14443_4_BLOCK_PCB_S_DESELECT   (0U << 4)
-#define ISO14443_4_BLOCK_PCB_S_WTX        (3U << 4)
-#define ISO14443_4_BLOCK_PCB_BLOCK_NUMBER (1U << 0)
+#define ISO14443_4_BLOCK_PCB      (1U << 1)
+#define ISO14443_4_BLOCK_PCB_MASK (0x03)
 
-#define ISO14443_4_BLOCK_PCB_NAD      (1U << 2)
-#define ISO14443_4_BLOCK_PCB_CID      (1U << 3)
-#define ISO14443_4_BLOCK_PCB_CHAINING (1U << 4)
+#define ISO14443_4_BLOCK_PCB_I              (0U)
+#define ISO14443_4_BLOCK_PCB_I_NAD_OFFSET   (2)
+#define ISO14443_4_BLOCK_PCB_I_CID_OFFSET   (3)
+#define ISO14443_4_BLOCK_PCB_I_CHAIN_OFFSET (4)
+#define ISO14443_4_BLOCK_PCB_I_NAD_MASK     (1U << ISO14443_4_BLOCK_PCB_I_NAD_OFFSET)
+#define ISO14443_4_BLOCK_PCB_I_CID_MASK     (1U << ISO14443_4_BLOCK_PCB_I_CID_OFFSET)
+#define ISO14443_4_BLOCK_PCB_I_CHAIN_MASK   (1U << ISO14443_4_BLOCK_PCB_I_CHAIN_OFFSET)
+
+#define ISO14443_4_BLOCK_PCB_R_MASK        (5U << 5)
+#define ISO14443_4_BLOCK_PCB_R_NACK_OFFSET (4)
+#define ISO14443_4_BLOCK_PCB_R_CID_OFFSET  (3)
+#define ISO14443_4_BLOCK_PCB_R_CID_MASK    (1U << ISO14443_4_BLOCK_PCB_R_CID_OFFSET)
+#define ISO14443_4_BLOCK_PCB_R_NACK_MASK   (1U << ISO14443_4_BLOCK_PCB_R_NACK_OFFSET)
+
+#define ISO14443_4_BLOCK_PCB_S_MASK                (3U << 6)
+#define ISO14443_4_BLOCK_PCB_S_CID_OFFSET          (3)
+#define ISO14443_4_BLOCK_PCB_S_WTX_DESELECT_OFFSET (4)
+#define ISO14443_4_BLOCK_PCB_S_CID_MASK            (1U << ISO14443_4_BLOCK_PCB_R_CID_OFFSET)
+#define ISO14443_4_BLOCK_PCB_S_WTX_DESELECT_MASK   (3U << ISO14443_4_BLOCK_PCB_S_WTX_DESELECT_OFFSET)
+
+#define ISO14443_4_BLOCK_PCB_BITS_ACTIVE(pcb, mask) (((pcb) & mask) == mask)
+
+#define ISO14443_4_BLOCK_PCB_IS_R_BLOCK(pcb) \
+    ISO14443_4_BLOCK_PCB_BITS_ACTIVE(pcb, ISO14443_4_BLOCK_PCB_R_MASK)
+
+#define ISO14443_4_BLOCK_PCB_IS_S_BLOCK(pcb) \
+    ISO14443_4_BLOCK_PCB_BITS_ACTIVE(pcb, ISO14443_4_BLOCK_PCB_S_MASK)
+
+#define ISO14443_4_BLOCK_PCB_IS_CHAIN_ACTIVE(pcb) \
+    ISO14443_4_BLOCK_PCB_BITS_ACTIVE(pcb, ISO14443_4_BLOCK_PCB_I_CHAIN_MASK)
+
+#define ISO14443_4_BLOCK_PCB_R_NACK_ACTIVE(pcb) \
+    ISO14443_4_BLOCK_PCB_BITS_ACTIVE(pcb, ISO14443_4_BLOCK_PCB_R_NACK_MASK)
 
 struct Iso14443_4Layer {
     uint8_t pcb;
@@ -43,9 +71,31 @@ void iso14443_4_layer_free(Iso14443_4Layer* instance) {
 
 void iso14443_4_layer_reset(Iso14443_4Layer* instance) {
     furi_assert(instance);
+    instance->pcb_prev = 0;
     instance->pcb = ISO14443_4_BLOCK_PCB_I | ISO14443_4_BLOCK_PCB;
 }
 
+void iso14443_4_layer_set_i_block(Iso14443_4Layer* instance, bool chaining, bool CID_present) {
+    uint8_t block_pcb = instance->pcb & ISO14443_4_BLOCK_PCB_MASK;
+    instance->pcb = ISO14443_4_BLOCK_PCB_I | (chaining << ISO14443_4_BLOCK_PCB_I_CHAIN_OFFSET) |
+                    (CID_present << ISO14443_4_BLOCK_PCB_I_CID_OFFSET) | block_pcb;
+}
+
+void iso14443_4_layer_set_r_block(Iso14443_4Layer* instance, bool acknowledged, bool CID_present) {
+    furi_assert(instance);
+    uint8_t block_pcb = instance->pcb & ISO14443_4_BLOCK_PCB_MASK;
+    instance->pcb = ISO14443_4_BLOCK_PCB_R_MASK |
+                    (!acknowledged << ISO14443_4_BLOCK_PCB_R_NACK_OFFSET) |
+                    (CID_present << ISO14443_4_BLOCK_PCB_R_CID_OFFSET) | block_pcb;
+}
+
+void iso14443_4_layer_set_s_block(Iso14443_4Layer* instance, bool deselect, bool CID_present) {
+    furi_assert(instance);
+    uint8_t des_wtx = !deselect ? (ISO14443_4_BLOCK_PCB_S_WTX_DESELECT_MASK) : 0;
+    instance->pcb = ISO14443_4_BLOCK_PCB_S_MASK | des_wtx |
+                    (CID_present << ISO14443_4_BLOCK_PCB_S_CID_OFFSET) | ISO14443_4_BLOCK_PCB;
+}
+
 void iso14443_4_layer_encode_block(
     Iso14443_4Layer* instance,
     const BitBuffer* input_data,
@@ -58,6 +108,11 @@ void iso14443_4_layer_encode_block(
     iso14443_4_layer_update_pcb(instance);
 }
 
+static inline uint8_t iso14443_4_layer_get_response_pcb(const BitBuffer* block_data) {
+    const uint8_t* data = bit_buffer_get_data(block_data);
+    return data[0];
+}
+
 bool iso14443_4_layer_decode_block(
     Iso14443_4Layer* instance,
     BitBuffer* output_data,
@@ -74,9 +129,26 @@ bool iso14443_4_layer_decode_block(
         return ret;
 
     do {
-        if(!bit_buffer_starts_with_byte(block_data, instance->pcb_prev)) break;
-        bit_buffer_copy_right(output_data, block_data, 1);
-        ret = true;
+        if(ISO14443_4_BLOCK_PCB_IS_R_BLOCK(instance->pcb_prev)) {
+            const uint8_t response_pcb = iso14443_4_layer_get_response_pcb(block_data);
+            ret = (ISO14443_4_BLOCK_PCB_IS_R_BLOCK(response_pcb)) &&
+                  (!ISO14443_4_BLOCK_PCB_R_NACK_ACTIVE(response_pcb));
+            instance->pcb &= ISO14443_4_BLOCK_PCB_MASK;
+            iso14443_4_layer_update_pcb(instance);
+        } else if(ISO14443_4_BLOCK_PCB_IS_CHAIN_ACTIVE(instance->pcb_prev)) {
+            const uint8_t response_pcb = iso14443_4_layer_get_response_pcb(block_data);
+            ret = (ISO14443_4_BLOCK_PCB_IS_R_BLOCK(response_pcb)) &&
+                  (!ISO14443_4_BLOCK_PCB_R_NACK_ACTIVE(response_pcb));
+            instance->pcb &= ~(ISO14443_4_BLOCK_PCB_I_CHAIN_MASK);
+        } else if(ISO14443_4_BLOCK_PCB_IS_S_BLOCK(instance->pcb_prev)) {
+            ret = bit_buffer_starts_with_byte(block_data, instance->pcb_prev);
+            if(bit_buffer_get_size_bytes(block_data) > 1)
+                bit_buffer_copy_right(output_data, block_data, 1);
+        } else {
+            if(!bit_buffer_starts_with_byte(block_data, instance->pcb_prev)) break;
+            bit_buffer_copy_right(output_data, block_data, 1);
+            ret = true;
+        }
     } while(false);
 
     return ret;
diff --git a/lib/nfc/helpers/iso14443_4_layer.h b/lib/nfc/helpers/iso14443_4_layer.h
index f4f8db520..9daf25775 100644
--- a/lib/nfc/helpers/iso14443_4_layer.h
+++ b/lib/nfc/helpers/iso14443_4_layer.h
@@ -15,6 +15,10 @@ void iso14443_4_layer_free(Iso14443_4Layer* instance);
 
 void iso14443_4_layer_reset(Iso14443_4Layer* instance);
 
+void iso14443_4_layer_set_i_block(Iso14443_4Layer* instance, bool chaining, bool CID_present);
+void iso14443_4_layer_set_r_block(Iso14443_4Layer* instance, bool acknowledged, bool CID_present);
+void iso14443_4_layer_set_s_block(Iso14443_4Layer* instance, bool deselect, bool CID_present);
+
 void iso14443_4_layer_encode_block(
     Iso14443_4Layer* instance,
     const BitBuffer* input_data,
diff --git a/lib/nfc/protocols/iso14443_4a/iso14443_4a_listener.c b/lib/nfc/protocols/iso14443_4a/iso14443_4a_listener.c
index 95612bf54..32cc8f198 100644
--- a/lib/nfc/protocols/iso14443_4a/iso14443_4a_listener.c
+++ b/lib/nfc/protocols/iso14443_4a/iso14443_4a_listener.c
@@ -84,6 +84,15 @@ static NfcCommand iso14443_4a_listener_run(NfcGenericEvent event, void* context)
         iso14443_3a_event->type == Iso14443_3aListenerEventTypeHalted ||
         iso14443_3a_event->type == Iso14443_3aListenerEventTypeFieldOff) {
         instance->state = Iso14443_4aListenerStateIdle;
+
+        instance->iso14443_4a_event.type = iso14443_3a_event->type ==
+                                                   Iso14443_3aListenerEventTypeHalted ?
+                                               Iso14443_4aListenerEventTypeHalted :
+                                               Iso14443_4aListenerEventTypeFieldOff;
+
+        if(instance->callback) {
+            command = instance->callback(instance->generic_event, instance->context);
+        }
         command = NfcCommandContinue;
     }
 
diff --git a/lib/nfc/protocols/iso14443_4a/iso14443_4a_listener.h b/lib/nfc/protocols/iso14443_4a/iso14443_4a_listener.h
index ba649847b..04f0b197a 100644
--- a/lib/nfc/protocols/iso14443_4a/iso14443_4a_listener.h
+++ b/lib/nfc/protocols/iso14443_4a/iso14443_4a_listener.h
@@ -12,6 +12,7 @@ typedef struct Iso14443_4aListener Iso14443_4aListener;
 
 typedef enum {
     Iso14443_4aListenerEventTypeHalted,
+    Iso14443_4aListenerEventTypeFieldOff,
     Iso14443_4aListenerEventTypeReceivedData,
 } Iso14443_4aListenerEventType;
 
diff --git a/lib/nfc/protocols/iso14443_4a/iso14443_4a_poller.h b/lib/nfc/protocols/iso14443_4a/iso14443_4a_poller.h
index 019beb2be..7b43d6ee8 100644
--- a/lib/nfc/protocols/iso14443_4a/iso14443_4a_poller.h
+++ b/lib/nfc/protocols/iso14443_4a/iso14443_4a_poller.h
@@ -61,6 +61,69 @@ Iso14443_4aError iso14443_4a_poller_send_block_pwt_ext(
     const BitBuffer* tx_buffer,
     BitBuffer* rx_buffer);
 
+/**
+ * @brief Transmit and receive Iso14443_4a chained block in poller mode. Also it
+ * automatically modifies PCB packet byte with appropriate bits then resets them back 
+ *
+ * Must ONLY be used inside the callback function.
+ *
+ * The rx_buffer will be filled with any data received as a response to data
+ * sent from tx_buffer. The fwt parameter is calculated during activation procedure.
+ *
+ * @param[in, out] instance pointer to the instance to be used in the transaction.
+ * @param[in] tx_buffer pointer to the buffer containing the data to be transmitted.
+ * @param[out] rx_buffer pointer to the buffer to be filled with received data.
+ * @return Iso14443_4aErrorNone on success, an error code on failure.
+ */
+Iso14443_4aError iso14443_4a_poller_send_chain_block(
+    Iso14443_4aPoller* instance,
+    const BitBuffer* tx_buffer,
+    BitBuffer* rx_buffer);
+
+/**
+ * @brief Transmit Iso14443_4a R-block in poller mode. This block never contains
+ * data, but can contain CID and NAD, therefore in tx_buffer only two bytes can be added.
+ * The first one will represent CID, the second one will represent NAD.
+ *
+ * Must ONLY be used inside the callback function.
+ *
+ * The rx_buffer will be filled with R-block repsonse
+ *
+ * @param[in, out] instance pointer to the instance to be used in the transaction.
+ * @param[in] acknowledged Sets appropriate bit in PCB byte. True - ACK, false - NAK
+ * @param[in] tx_buffer pointer to the buffer containing the data to be transmitted.
+ * @param[out] rx_buffer pointer to the buffer to be filled with received data.
+ * @return Iso14443_4aErrorNone on success, an error code on failure.
+ */
+Iso14443_4aError iso14443_4a_poller_send_receive_ready_block(
+    Iso14443_4aPoller* instance,
+    bool acknowledged,
+    const BitBuffer* tx_buffer,
+    BitBuffer* rx_buffer);
+
+/**
+ * @brief Transmit Iso14443_4a S-block in poller mode. S-block used to exchange control
+ * information between the card and the reader. Two different types of S-blocks
+ * are defined:
+ * - Waiting time extension containing a 1 byte long INF field and (deselect = false)
+ * - DESELECT containing no INF field  (deselect = true)
+ *
+ * Must ONLY be used inside the callback function.
+ *
+ * The rx_buffer will be filled with R-block repsonse
+ *
+ * @param[in, out] instance pointer to the instance to be used in the transaction.
+ * @param[in] deselect Sets appropriate bit in PCB byte.
+ * @param[in] tx_buffer pointer to the buffer containing the data to be transmitted.
+ * @param[out] rx_buffer pointer to the buffer to be filled with received data.
+ * @return Iso14443_4aErrorNone on success, an error code on failure.
+ */
+Iso14443_4aError iso14443_4a_poller_send_supervisory_block(
+    Iso14443_4aPoller* instance,
+    bool deselect,
+    const BitBuffer* tx_buffer,
+    BitBuffer* rx_buffer);
+
 /**
  * @brief Send HALT command to the card.
  *
diff --git a/lib/nfc/protocols/iso14443_4a/iso14443_4a_poller_i.c b/lib/nfc/protocols/iso14443_4a/iso14443_4a_poller_i.c
index 02d78fba5..97b3171d5 100644
--- a/lib/nfc/protocols/iso14443_4a/iso14443_4a_poller_i.c
+++ b/lib/nfc/protocols/iso14443_4a/iso14443_4a_poller_i.c
@@ -164,3 +164,34 @@ Iso14443_4aError iso14443_4a_poller_send_block_pwt_ext(
 
     return error;
 }
+
+Iso14443_4aError iso14443_4a_poller_send_chain_block(
+    Iso14443_4aPoller* instance,
+    const BitBuffer* tx_buffer,
+    BitBuffer* rx_buffer) {
+    iso14443_4_layer_set_i_block(instance->iso14443_4_layer, true, false);
+    Iso14443_4aError error = iso14443_4a_poller_send_block(instance, tx_buffer, rx_buffer);
+    return error;
+}
+
+Iso14443_4aError iso14443_4a_poller_send_receive_ready_block(
+    Iso14443_4aPoller* instance,
+    bool acknowledged,
+    const BitBuffer* tx_buffer,
+    BitBuffer* rx_buffer) {
+    bool CID_present = bit_buffer_get_size_bytes(tx_buffer) != 0;
+    iso14443_4_layer_set_r_block(instance->iso14443_4_layer, acknowledged, CID_present);
+    Iso14443_4aError error = iso14443_4a_poller_send_block(instance, tx_buffer, rx_buffer);
+    return error;
+}
+
+Iso14443_4aError iso14443_4a_poller_send_supervisory_block(
+    Iso14443_4aPoller* instance,
+    bool deselect,
+    const BitBuffer* tx_buffer,
+    BitBuffer* rx_buffer) {
+    bool CID_present = bit_buffer_get_size_bytes(tx_buffer) != 0;
+    iso14443_4_layer_set_s_block(instance->iso14443_4_layer, deselect, CID_present);
+    Iso14443_4aError error = iso14443_4a_poller_send_block(instance, tx_buffer, rx_buffer);
+    return error;
+}
diff --git a/lib/subghz/devices/devices.c b/lib/subghz/devices/devices.c
index fc3917c86..845f2d962 100644
--- a/lib/subghz/devices/devices.c
+++ b/lib/subghz/devices/devices.c
@@ -37,7 +37,7 @@ bool subghz_devices_begin(const SubGhzDevice* device) {
             .ver = 1,
             .extended_range = furi_hal_subghz_get_extended_range(),
             .bypass_region = furi_hal_subghz_get_bypass_region(),
-            .power_amp = true,
+            .amp_and_leds = true,
         };
 
         ret = device->interconnect->begin(&conf);
diff --git a/lib/subghz/devices/types.h b/lib/subghz/devices/types.h
index 6e05c93c2..3c34aaf0b 100644
--- a/lib/subghz/devices/types.h
+++ b/lib/subghz/devices/types.h
@@ -99,5 +99,5 @@ struct SubGhzDeviceConf {
     uint8_t ver;
     bool extended_range;
     bool bypass_region;
-    bool power_amp;
+    bool amp_and_leds;
 };
diff --git a/targets/f7/api_symbols.csv b/targets/f7/api_symbols.csv
index 47cff59e7..452d23f50 100644
--- a/targets/f7/api_symbols.csv
+++ b/targets/f7/api_symbols.csv
@@ -842,6 +842,7 @@ Function,+,canvas_draw_str,void,"Canvas*, int32_t, int32_t, const char*"
 Function,+,canvas_draw_str_aligned,void,"Canvas*, int32_t, int32_t, Align, Align, const char*"
 Function,+,canvas_draw_triangle,void,"Canvas*, int32_t, int32_t, size_t, size_t, CanvasDirection"
 Function,+,canvas_draw_xbm,void,"Canvas*, int32_t, int32_t, size_t, size_t, const uint8_t*"
+Function,+,canvas_draw_xbm_mirrored,void,"Canvas*, int32_t, int32_t, size_t, size_t, const uint8_t*"
 Function,+,canvas_get_font_params,const CanvasFontParameters*,"const Canvas*, Font"
 Function,+,canvas_glyph_width,size_t,"Canvas*, uint16_t"
 Function,+,canvas_height,size_t,const Canvas*
@@ -2200,6 +2201,9 @@ Function,+,iso14443_4a_poller_halt,Iso14443_4aError,Iso14443_4aPoller*
 Function,+,iso14443_4a_poller_read_ats,Iso14443_4aError,"Iso14443_4aPoller*, Iso14443_4aAtsData*"
 Function,+,iso14443_4a_poller_send_block,Iso14443_4aError,"Iso14443_4aPoller*, const BitBuffer*, BitBuffer*"
 Function,+,iso14443_4a_poller_send_block_pwt_ext,Iso14443_4aError,"Iso14443_4aPoller*, const BitBuffer*, BitBuffer*"
+Function,+,iso14443_4a_poller_send_chain_block,Iso14443_4aError,"Iso14443_4aPoller*, const BitBuffer*, BitBuffer*"
+Function,+,iso14443_4a_poller_send_receive_ready_block,Iso14443_4aError,"Iso14443_4aPoller*, _Bool, const BitBuffer*, BitBuffer*"
+Function,+,iso14443_4a_poller_send_supervisory_block,Iso14443_4aError,"Iso14443_4aPoller*, _Bool, const BitBuffer*, BitBuffer*"
 Function,+,iso14443_4a_reset,void,Iso14443_4aData*
 Function,+,iso14443_4a_save,_Bool,"const Iso14443_4aData*, FlipperFormat*"
 Function,+,iso14443_4a_set_uid,_Bool,"Iso14443_4aData*, const uint8_t*, size_t"