diff --git a/applications/system/kiisu_light/application.fam b/applications/system/kiisu_light/application.fam
new file mode 100644
index 000000000..669fa4c21
--- /dev/null
+++ b/applications/system/kiisu_light/application.fam
@@ -0,0 +1,9 @@
+App(
+    appid="kiisu_light",
+    name="Kiisu ligh sensor ADC",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="kiisu_light_adc_main",
+    requires=["gui"],
+    stack_size=1 * 1024,
+    fap_category="System",
+)
diff --git a/applications/system/kiisu_light/kiisu_light_adc.c b/applications/system/kiisu_light/kiisu_light_adc.c
new file mode 100644
index 000000000..fb37f39c6
--- /dev/null
+++ b/applications/system/kiisu_light/kiisu_light_adc.c
@@ -0,0 +1,145 @@
+/**
+ * @file kiisu_light_ads.c
+ * @brief Light level ADC.
+  Based on ADC example.
+ */
+#include <furi.h>
+#include <furi_hal.h>
+
+#include <gui/gui.h>
+#include <gui/elements.h>
+#include <input/input.h>
+
+#include <lib/u8g2/u8g2.h>
+#include <lib/u8g2/u8g2_fonts.c>
+
+#define FONT_HEIGHT (8u)
+
+typedef float (*ValueConverter)(FuriHalAdcHandle* handle, uint16_t value);
+
+typedef struct {
+    const GpioPinRecord* pin;
+    float value;
+    ValueConverter converter;
+    const char* suffix;
+} DataItem;
+
+typedef struct {
+    size_t count;
+    DataItem* items;
+} Data;
+
+const GpioPinRecord item_light = {.name = "LGHT", .channel = FuriHalAdcChannel4};
+const GpioPinRecord item_vref  = {.name = "VREF", .channel = FuriHalAdcChannelVREFINT};
+const GpioPinRecord item_temp  = {.name = "TEMP", .channel = FuriHalAdcChannelTEMPSENSOR};
+const GpioPinRecord item_vbat  = {.name = "VBAT", .channel = FuriHalAdcChannelVBAT};
+
+static void app_draw_callback(Canvas* canvas, void* ctx) {
+    furi_assert(ctx);
+    Data* data = ctx;
+
+    canvas_set_custom_u8g2_font(canvas, u8g_font_5x8); // lib/u8g2/u8g2_fonts.c
+     
+    char buffer[64];
+    int32_t x = 0, y = FONT_HEIGHT;
+    for(size_t i = 0; i < data->count; i++) {
+        if(i == canvas_height(canvas) / FONT_HEIGHT) {
+            x = 64;
+            y = FONT_HEIGHT;
+        }
+
+        snprintf(
+            buffer,
+            sizeof(buffer),
+            "%4s: %4.0f%s\n",
+            data->items[i].pin->name,
+            (double)data->items[i].value,
+            data->items[i].suffix);
+        canvas_draw_str(canvas, x, y, buffer);
+        y += FONT_HEIGHT;
+
+        if(i == 0) { //Light level
+            char line[32];            
+            snprintf(line, sizeof(line), "%4.0f%%", 100 - ((double)data->items[i].value / 1187 * 100));
+            canvas_draw_str(canvas, x, y, line);
+            y += FONT_HEIGHT;
+        }
+    }
+}
+
+static void app_input_callback(InputEvent* input_event, void* ctx) {
+    furi_assert(ctx);
+    FuriMessageQueue* event_queue = ctx;
+    furi_message_queue_put(event_queue, input_event, FuriWaitForever);
+}
+
+int32_t kiisu_light_adc_main(void* p) {
+    UNUSED(p);
+
+    // Data
+    Data data = {};
+    data.count += 4; // Special channels
+    data.items = malloc(data.count * sizeof(DataItem));
+    size_t item_pos = 0;
+    furi_hal_gpio_init(&gpio_ext_pc3, GpioModeAnalog, GpioPullDown, GpioSpeedHigh);
+    data.items[item_pos].pin = &item_light;
+    data.items[item_pos].converter = furi_hal_adc_convert_to_voltage;
+    data.items[item_pos].suffix = "mV / 1187mV";
+    item_pos++;
+    data.items[item_pos].pin = &item_temp;
+    data.items[item_pos].converter = furi_hal_adc_convert_temp;
+    data.items[item_pos].suffix = "C";
+    item_pos++;
+    data.items[item_pos].pin = &item_vref;
+    data.items[item_pos].converter = furi_hal_adc_convert_vref;
+    data.items[item_pos].suffix = "mV";
+    item_pos++;
+    data.items[item_pos].pin = &item_vbat;
+    data.items[item_pos].converter = furi_hal_adc_convert_vbat;
+    data.items[item_pos].suffix = "mV";
+    item_pos++;
+    furi_assert(item_pos == data.count);
+
+    // Alloc message queue
+    FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(InputEvent));
+
+    // Configure view port
+    ViewPort* view_port = view_port_alloc();
+    view_port_draw_callback_set(view_port, app_draw_callback, &data);
+    view_port_input_callback_set(view_port, app_input_callback, event_queue);
+
+    // Register view port in GUI
+    Gui* gui = furi_record_open(RECORD_GUI);
+    gui_add_view_port(gui, view_port, GuiLayerFullscreen);
+
+    // Initialize ADC
+    FuriHalAdcHandle* adc_handle = furi_hal_adc_acquire();
+    furi_hal_adc_configure(adc_handle);
+
+    // Process events
+    InputEvent event;
+    bool running = true;
+    while(running) {
+        if(furi_message_queue_get(event_queue, &event, 100) == FuriStatusOk) {
+            if(event.type == InputTypePress && event.key == InputKeyBack) {
+                running = false;
+            }
+        } else {
+            for(size_t i = 0; i < data.count; i++) {
+                data.items[i].value = data.items[i].converter(
+                    adc_handle, furi_hal_adc_read(adc_handle, data.items[i].pin->channel));
+            }
+            view_port_update(view_port);
+        }
+    }
+
+    furi_hal_adc_release(adc_handle);
+    view_port_enabled_set(view_port, false);
+    gui_remove_view_port(gui, view_port);
+    view_port_free(view_port);
+    furi_message_queue_free(event_queue);
+    furi_record_close(RECORD_GUI);
+    free(data.items);
+
+    return 0;
+}
diff --git a/assets/dolphin/external/L1_Tv_128x47/frame_0.png b/assets/dolphin/external/L1_Tv_128x47/frame_0.png
new file mode 100644
index 000000000..f413b134b
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diff --git a/assets/dolphin/external/L1_Tv_128x47/meta.txt b/assets/dolphin/external/L1_Tv_128x47/meta.txt
new file mode 100644
index 000000000..6679385b8
--- /dev/null
+++ b/assets/dolphin/external/L1_Tv_128x47/meta.txt
@@ -0,0 +1,32 @@
+Filetype: Flipper Animation
+Version: 1
+
+Width: 128
+Height: 47
+Passive frames: 1
+Active frames: 0
+Frames order: 0
+Active cycles: 0
+Frame rate: 2
+Duration: 3600
+Active cooldown: 0
+
+Bubble slots: 2
+
+Slot: 0
+X: 1
+Y: 23
+Text: Take the red pill
+AlignH: Right
+AlignV: Bottom
+StartFrame: 0
+EndFrame: 0
+
+Slot: 1
+X: 1
+Y: 23
+Text: I can joke better
+AlignH: Right
+AlignV: Bottom
+StartFrame: 0
+EndFrame: 0
diff --git a/assets/dolphin/external/LA_KiisuHappy_128x64/frame_0.png b/assets/dolphin/external/LA_KiisuHappy_128x64/frame_0.png
new file mode 100644
index 000000000..36056e763
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new file mode 100644
index 000000000..d5297d6a5
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new file mode 100644
index 000000000..13e171f48
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diff --git a/assets/dolphin/external/LA_KiisuHappy_128x64/frame_3.png b/assets/dolphin/external/LA_KiisuHappy_128x64/frame_3.png
new file mode 100644
index 000000000..3ed6cd7df
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diff --git a/assets/dolphin/external/LA_KiisuHappy_128x64/meta.txt b/assets/dolphin/external/LA_KiisuHappy_128x64/meta.txt
new file mode 100755
index 000000000..83eb36402
--- /dev/null
+++ b/assets/dolphin/external/LA_KiisuHappy_128x64/meta.txt
@@ -0,0 +1,14 @@
+Filetype: Flipper Animation
+Version: 1
+
+Width: 128
+Height: 64
+Passive frames: 4
+Active frames: 0
+Frames order: 0 1 2 3
+Active cycles: 0
+Frame rate: 1
+Duration: 10
+Active cooldown: 0
+
+Bubble slots: 0
diff --git a/assets/dolphin/external/LA_KiisuSad_128x64/frame_0.png b/assets/dolphin/external/LA_KiisuSad_128x64/frame_0.png
new file mode 100644
index 000000000..111fce5d3
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diff --git a/assets/dolphin/external/LA_KiisuSad_128x64/meta.txt b/assets/dolphin/external/LA_KiisuSad_128x64/meta.txt
new file mode 100755
index 000000000..29f8d4923
--- /dev/null
+++ b/assets/dolphin/external/LA_KiisuSad_128x64/meta.txt
@@ -0,0 +1,14 @@
+Filetype: Flipper Animation
+Version: 1
+
+Width: 128
+Height: 64
+Passive frames: 1
+Active frames: 0
+Frames order: 0
+Active cycles: 0
+Frame rate: 1
+Duration: 10
+Active cooldown: 0
+
+Bubble slots: 0
diff --git a/assets/dolphin/external/LA_Kiisu_128x64/frame_0.png b/assets/dolphin/external/LA_Kiisu_128x64/frame_0.png
index 35ba3eef3..4362923b3 100644
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new file mode 100644
index 000000000..60385a144
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diff --git a/assets/dolphin/external/LA_Kiisu_128x64/frame_2.png b/assets/dolphin/external/LA_Kiisu_128x64/frame_2.png
new file mode 100644
index 000000000..72d376b10
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diff --git a/assets/dolphin/external/LA_Kiisu_128x64/meta.txt b/assets/dolphin/external/LA_Kiisu_128x64/meta.txt
index 85c55cd19..9c9143212 100755
--- a/assets/dolphin/external/LA_Kiisu_128x64/meta.txt
+++ b/assets/dolphin/external/LA_Kiisu_128x64/meta.txt
@@ -3,12 +3,12 @@ Version: 1
 
 Width: 128
 Height: 64
-Passive frames: 1
+Passive frames: 3
 Active frames: 0
-Frames order: 0
+Frames order: 0 1 2
 Active cycles: 0
 Frame rate: 1
-Duration: 3600
+Duration: 10
 Active cooldown: 0
 
 Bubble slots: 0
diff --git a/assets/dolphin/external/manifest.txt b/assets/dolphin/external/manifest.txt
index a752f19d0..7b89e713d 100644
--- a/assets/dolphin/external/manifest.txt
+++ b/assets/dolphin/external/manifest.txt
@@ -6,4 +6,25 @@ Min butthurt: 0
 Max butthurt: 14
 Min level: 1
 Max level: 30
+Weight: 4
+
+Name: LA_KiisuHappy_128x64
+Min butthurt: 0
+Max butthurt: 5
+Min level: 1
+Max level: 30
 Weight: 5
+
+Name: LA_KiisuSad_128x64
+Min butthurt: 5
+Max butthurt: 14
+Min level: 1
+Max level: 30
+Weight: 5
+
+Name: L1_Tv_128x47
+Min butthurt: 0
+Max butthurt: 14
+Min level: 1
+Max level: 30
+Weight: 4
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index df9028d44..656982acc 100644
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diff --git a/assets/icons/Power/FaceNormal_29x14.png b/assets/icons/Power/FaceNormal_29x14.png
index 84e5d031f..83a9c20e2 100644
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diff --git a/assets/icons/RFID/RFIDDolphinReceive_97x61.png b/assets/icons/RFID/RFIDDolphinReceive_97x61.png
index 06deb0a27..69c557694 100644
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diff --git a/assets/icons/RFID/RFIDDolphinSend_97x61.png b/assets/icons/RFID/RFIDDolphinSend_97x61.png
index 65dff8241..531a7431b 100644
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diff --git a/assets/icons/Settings/dolph_cry_49x54.png b/assets/icons/Settings/dolph_cry_49x54.png
index 1ebb69e3e..93069ebe8 100644
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diff --git a/assets/icons/SubGhz/Fishing_123x52.png b/assets/icons/SubGhz/Fishing_123x52.png
index 6b3f39310..6179b4deb 100644
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diff --git a/assets/icons/SubGhz/Scanning_123x52.png b/assets/icons/SubGhz/Scanning_123x52.png
index 16c177527..6179b4deb 100644
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diff --git a/assets/icons/U2F/Auth_62x31.png b/assets/icons/U2F/Auth_62x31.png
index 0c22865b2..f0cdc9925 100644
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diff --git a/assets/icons/U2F/Connect_me_62x31.png b/assets/icons/U2F/Connect_me_62x31.png
index d7def86b0..a3020bf8a 100644
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diff --git a/assets/icons/U2F/Connected_62x31.png b/assets/icons/U2F/Connected_62x31.png
index ee415989d..87f9c237d 100644
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diff --git a/assets/icons/U2F/Error_62x31.png b/assets/icons/U2F/Error_62x31.png
index c8b3b7a30..f03523a87 100644
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diff --git a/assets/icons/iButton/iButtonDolphinVerySuccess_92x55.png b/assets/icons/iButton/iButtonDolphinVerySuccess_92x55.png
index 0d8263c5e..8ea5575e2 100644
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diff --git a/targets/f7/furi_hal/furi_hal_i2c_config.c b/targets/f7/furi_hal/furi_hal_i2c_config.c
index b10c53d32..0491048aa 100644
--- a/targets/f7/furi_hal/furi_hal_i2c_config.c
+++ b/targets/f7/furi_hal/furi_hal_i2c_config.c
@@ -130,9 +130,9 @@ void furi_hal_i2c_bus_handle_external_event(
     FuriHalI2cBusHandleEvent event) {
     if(event == FuriHalI2cBusHandleEventActivate) {
         furi_hal_gpio_init_ex(
-            &gpio_ext_pc0, GpioModeAltFunctionOpenDrain, GpioPullNo, GpioSpeedLow, GpioAltFn4I2C3);
+            &gpio_ext_pc0, GpioModeAltFunctionOpenDrain, GpioPullUp, GpioSpeedLow, GpioAltFn4I2C3);
         furi_hal_gpio_init_ex(
-            &gpio_ext_pc1, GpioModeAltFunctionOpenDrain, GpioPullNo, GpioSpeedLow, GpioAltFn4I2C3);
+            &gpio_ext_pc1, GpioModeAltFunctionOpenDrain, GpioPullUp, GpioSpeedLow, GpioAltFn4I2C3);
 
         LL_I2C_InitTypeDef I2C_InitStruct;
         I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
diff --git a/targets/f7/furi_hal/furi_hal_power.c b/targets/f7/furi_hal/furi_hal_power.c
index 1fbad0c86..52df1516f 100644
--- a/targets/f7/furi_hal/furi_hal_power.c
+++ b/targets/f7/furi_hal/furi_hal_power.c
@@ -71,7 +71,7 @@ void furi_hal_power_init(void) {
 
     furi_hal_i2c_acquire(&furi_hal_i2c_handle_power);
     // Find and init gauge
-    size_t retry = 0;
+    size_t retry = 2;
     while(retry > 0) {
         furi_hal_power.gauge_ok =
             bq27220_init(&furi_hal_i2c_handle_power, furi_hal_power_gauge_data_memory);
@@ -85,7 +85,7 @@ void furi_hal_power_init(void) {
         retry--;
     }
     // Find and init charger
-    retry = 0;
+    retry = 2;
     while(retry > 0) {
         furi_hal_power.charger_ok = bq25896_init(&furi_hal_i2c_handle_power);
         if(furi_hal_power.charger_ok) {
diff --git a/targets/f7/furi_hal/furi_hal_version_device.c b/targets/f7/furi_hal/furi_hal_version_device.c
index 2c0ad02f2..ff5a9a515 100644
--- a/targets/f7/furi_hal/furi_hal_version_device.c
+++ b/targets/f7/furi_hal/furi_hal_version_device.c
@@ -5,11 +5,11 @@ bool furi_hal_version_do_i_belong_here(void) {
 }
 
 const char* furi_hal_version_get_model_name(void) {
-    return "Kiisu 4a";
+    return "Kiisu 4";
 }
 
 const char* furi_hal_version_get_model_code(void) {
-    return "K4.A";
+    return "K4.AB";
 }
 
 const char* furi_hal_version_get_fcc_id(void) {