Added Term of Services & Easter egg

applications/services/desktop/desktop.c

@@ -282,6 +282,7 @@ static Desktop* desktop_alloc(void) {
     desktop->pin_input_view = desktop_view_pin_input_alloc();
     desktop->pin_timeout_view = desktop_view_pin_timeout_alloc();
     desktop->slideshow_view = desktop_view_slideshow_alloc();
+    desktop->tos_view = desktop_view_tos_alloc();
 
     desktop->main_view_stack = view_stack_alloc();
     desktop->main_view = desktop_main_alloc();
@@ -326,6 +327,10 @@ static Desktop* desktop_alloc(void) {
         desktop->view_dispatcher,
         DesktopViewIdSlideshow,
         desktop_view_slideshow_get_view(desktop->slideshow_view));
+    view_dispatcher_add_view(
+        desktop->view_dispatcher,
+        DesktopViewIdTos,
+        desktop_view_tos_get_view(desktop->tos_view));
 
     // Lock icon
     desktop->lock_icon_viewport = view_port_alloc();
@@ -513,6 +518,8 @@ int32_t desktop_srv(void* p) {
         scene_manager_next_scene(desktop->scene_manager, DesktopSceneSlideshow);
     }
 
+    scene_manager_next_scene(desktop->scene_manager, DesktopSceneTos);
+
     if(!furi_hal_version_do_i_belong_here()) {
         scene_manager_next_scene(desktop->scene_manager, DesktopSceneHwMismatch);
     }

applications/services/desktop/desktop_i.h

@@ -11,6 +11,8 @@
 #include "views/desktop_view_lock_menu.h"
 #include "views/desktop_view_debug.h"
 #include "views/desktop_view_slideshow.h"
+#include "views/desktop_view_tos.h"
+#include "helpers/arf_boot_jingle.h"
 
 #include <gui/gui.h>
 #include <gui/view_stack.h>
@@ -32,6 +34,7 @@ typedef enum {
     DesktopViewIdPinInput,
     DesktopViewIdPinTimeout,
     DesktopViewIdSlideshow,
+    DesktopViewIdTos,
     DesktopViewIdTotal,
 } DesktopViewId;
 
@@ -55,6 +58,7 @@ struct Desktop {
     DesktopMainView* main_view;
     DesktopViewPinTimeout* pin_timeout_view;
     DesktopSlideshowView* slideshow_view;
+    DesktopViewTos* tos_view;
     DesktopViewPinInput* pin_input_view;
 
     ViewStack* main_view_stack;

applications/services/desktop/helpers/arf_boot_jingle.c

@@ -0,0 +1,98 @@
+#include "arf_boot_jingle.h"
+
+#include <furi.h>
+#include <furi_hal_speaker.h>
+
+typedef struct {
+    float frequency;
+    uint32_t duration_ms;
+} ArfBootNote;
+
+static const ArfBootNote arf_boot_jingle[] = {
+    {1046.50f, 50},
+    {1046.50f, 200},
+    {0.0f,     100},
+    {783.99f,  300},
+    {0.0f,     50},
+    {659.26f,  300},
+    {0.0f,     50},
+    {783.99f,  250},
+    {880.00f,  100},
+    {880.00f,  100},
+    {783.99f,  300},
+    {1046.50f, 150},
+    {1318.51f, 150},
+    {1760.00f, 250},
+    {1396.91f, 150},
+    {1567.98f, 100},
+    {1318.51f, 250},
+    {1174.66f, 150},
+    {1396.91f, 150},
+    {1318.51f, 400},
+    {392.00f,  100},
+    {523.25f,  300},
+    {0.0f,     50},
+    {1567.98f, 150},
+    {1479.98f, 150},
+    {1396.91f, 150},
+    {1174.66f, 250},
+    {1318.51f, 300},
+    {783.99f,  150},
+    {1046.50f, 100},
+    {1318.51f, 100},
+    {783.99f,  100},
+    {1046.50f, 100},
+    {1318.51f, 150},
+    {0.0f,     50},
+    {1567.98f, 150},
+    {1479.98f, 100},
+    {1396.91f, 150},
+    {1174.66f, 250},
+    {1318.51f, 300},
+    {0.0f,     50},
+    {2093.00f, 700},
+};
+
+static const uint32_t arf_boot_jingle_len =
+    sizeof(arf_boot_jingle) / sizeof(arf_boot_jingle[0]);
+
+static FuriThread* jingle_thread = NULL;
+
+static int32_t arf_jingle_thread_cb(void* context) {
+    UNUSED(context);
+
+    if(!furi_hal_speaker_acquire(1000)) {
+        return 0;
+    }
+
+    for(uint32_t i = 0; i < arf_boot_jingle_len; i++) {
+        const ArfBootNote* note = &arf_boot_jingle[i];
+        if(note->frequency == 0.0f) {
+            furi_hal_speaker_stop();
+        } else {
+            furi_hal_speaker_start(note->frequency, 0.8f);
+        }
+        furi_delay_ms(note->duration_ms);
+    }
+
+    furi_hal_speaker_stop();
+    furi_hal_speaker_release();
+    return 0;
+}
+
+void arf_boot_jingle_play(void) {
+    if(jingle_thread != NULL) {
+        return;
+    }
+
+    jingle_thread = furi_thread_alloc_ex("ArfJingle", 512, arf_jingle_thread_cb, NULL);
+    furi_thread_start(jingle_thread);
+}
+
+void arf_boot_jingle_stop(void) {
+    if(jingle_thread != NULL) {
+        furi_thread_join(jingle_thread);
+        furi_thread_free(jingle_thread);
+        jingle_thread = NULL;
+    }
+}

applications/services/desktop/helpers/arf_boot_jingle.h

@@ -0,0 +1,4 @@
+#pragma once
+
+void arf_boot_jingle_play(void);
+void arf_boot_jingle_stop(void);

applications/services/desktop/scenes/desktop_scene_config.h

@@ -8,3 +8,4 @@ ADD_SCENE(desktop, pin_input, PinInput)
 ADD_SCENE(desktop, pin_timeout, PinTimeout)
 ADD_SCENE(desktop, slideshow, Slideshow)
 ADD_SCENE(desktop, secure_enclave, SecureEnclave)
+ADD_SCENE(desktop, tos, Tos)

applications/services/desktop/scenes/desktop_scene_slideshow.c

@@ -4,6 +4,7 @@
 #include "../desktop_i.h"
 #include "../views/desktop_view_slideshow.h"
 #include "../views/desktop_events.h"
+#include "desktop_scene.h"
 #include <power/power_service/power.h>
 
 void desktop_scene_slideshow_callback(DesktopEvent event, void* context) {

applications/services/desktop/scenes/desktop_scene_tos.c

@@ -0,0 +1,52 @@
+#include <power/power_service/power.h>
+#include <gui/scene_manager.h>
+
+#include "desktop_scene.h"
+#include "../desktop_i.h"
+#include "../views/desktop_events.h"
+#include "../views/desktop_view_tos.h"
+
+static void desktop_scene_tos_callback(DesktopEvent event, void* context) {
+    Desktop* desktop = (Desktop*)context;
+    view_dispatcher_send_custom_event(desktop->view_dispatcher, event);
+}
+
+void desktop_scene_tos_on_enter(void* context) {
+    Desktop* desktop = (Desktop*)context;
+
+    arf_boot_jingle_play();
+
+    gui_set_hide_status_bar(desktop->gui, true);
+    desktop_view_tos_set_callback(desktop->tos_view, desktop_scene_tos_callback, desktop);
+    view_dispatcher_switch_to_view(desktop->view_dispatcher, DesktopViewIdTos);
+}
+
+bool desktop_scene_tos_on_event(void* context, SceneManagerEvent event) {
+    Desktop* desktop = (Desktop*)context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        switch(event.event) {
+        case DesktopTosAccepted:
+            scene_manager_previous_scene(desktop->scene_manager);
+            consumed = true;
+            break;
+        case DesktopTosDeclined: {
+            Power* power = furi_record_open(RECORD_POWER);
+            power_off(power);
+            furi_record_close(RECORD_POWER);
+            consumed = true;
+            break;
+        }
+        default:
+            break;
+        }
+    }
+    return consumed;
+}
+
+void desktop_scene_tos_on_exit(void* context) {
+    Desktop* desktop = (Desktop*)context;
+    arf_boot_jingle_stop();
+    gui_set_hide_status_bar(desktop->gui, false);
+}

applications/services/desktop/views/desktop_events.h

@@ -39,6 +39,8 @@ typedef enum {
 
     DesktopSlideshowCompleted,
     DesktopSlideshowPoweroff,
+    DesktopTosAccepted,
+    DesktopTosDeclined,
 
     DesktopHwMismatchExit,
 

applications/services/desktop/views/desktop_view_tos.c

@@ -0,0 +1,79 @@
+#include <furi.h>
+#include "desktop_view_tos.h"
+
+struct DesktopViewTos {
+    View* view;
+    DesktopViewTosCallback callback;
+    void* context;
+};
+
+static void desktop_view_tos_draw(Canvas* canvas, void* model) {
+    UNUSED(model);
+    canvas_clear(canvas);
+
+    static const uint8_t mario_bits[] = {
+        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xcc,0x00,0x00,0x82,0x01,0x00,
+        0xc1,0x00,0x00,0xe1,0x07,0x80,0x09,0x08,0x40,0x46,0x07,0x40,0x42,0x03,0x40,0x08,
+        0x04,0x80,0x30,0x04,0x00,0xf1,0x04,0x80,0x82,0x07,0x20,0xfc,0x00,0x30,0x7e,0x00,
+        0x10,0x91,0x00,0x10,0xa0,0x02,0xe0,0x20,0x05,0x60,0x31,0x07,0xf0,0xfb,0x03,0xf0,
+        0xe3,0x00,0xe8,0xe9,0x00,0x08,0xfe,0x00,0x1c,0x7c,0x01,0xf4,0x1f,0x06,0xe4,0x13,
+        0x0e,0x84,0x90,0x09,0x84,0x40,0x08,0x88,0x20,0x06,0x70,0xe0,0x03,0x00,0x00,0x00};
+
+    canvas_draw_xbm(canvas, 105, 0, 22, 32, mario_bits);
+
+    canvas_set_font(canvas, FontPrimary);
+    canvas_draw_str(canvas, 2, 11, "Term of use:");
+
+    canvas_set_font(canvas, FontSecondary);
+    canvas_draw_str(canvas, 3, 22, "Authorize RF research");
+    canvas_draw_str(canvas, 3, 30, "use ONLY. Unauthorized");
+    canvas_draw_str(canvas, 3, 39, "use is prohibited.");
+    canvas_draw_str(canvas, 2, 61, "Back=Shutdown");
+    canvas_draw_str(canvas, 80, 62, "Ok=Accept");
+}
+
+static bool desktop_view_tos_input(InputEvent* event, void* context) {
+    furi_assert(event);
+    DesktopViewTos* instance = context;
+
+    if(event->type == InputTypeShort) {
+        if(event->key == InputKeyOk) {
+            instance->callback(DesktopTosAccepted, instance->context);
+            return true;
+        } else if(event->key == InputKeyBack) {
+            instance->callback(DesktopTosDeclined, instance->context);
+            return true;
+        }
+    }
+    return true;
+}
+
+DesktopViewTos* desktop_view_tos_alloc(void) {
+    DesktopViewTos* instance = malloc(sizeof(DesktopViewTos));
+    instance->view = view_alloc();
+    view_set_context(instance->view, instance);
+    view_set_draw_callback(instance->view, desktop_view_tos_draw);
+    view_set_input_callback(instance->view, desktop_view_tos_input);
+    return instance;
+}
+
+void desktop_view_tos_free(DesktopViewTos* instance) {
+    furi_assert(instance);
+    view_free(instance->view);
+    free(instance);
+}
+
+View* desktop_view_tos_get_view(DesktopViewTos* instance) {
+    furi_assert(instance);
+    return instance->view;
+}
+
+void desktop_view_tos_set_callback(
+    DesktopViewTos* instance,
+    DesktopViewTosCallback callback,
+    void* context) {
+    furi_assert(instance);
+    furi_assert(callback);
+    instance->callback = callback;
+    instance->context = context;
+}

applications/services/desktop/views/desktop_view_tos.h

@@ -0,0 +1,14 @@
+#pragma once
+#include <gui/view.h>
+#include "desktop_events.h"
+
+typedef struct DesktopViewTos DesktopViewTos;
+typedef void (*DesktopViewTosCallback)(DesktopEvent event, void* context);
+
+DesktopViewTos* desktop_view_tos_alloc(void);
+void desktop_view_tos_free(DesktopViewTos* instance);
+View* desktop_view_tos_get_view(DesktopViewTos* instance);
+void desktop_view_tos_set_callback(
+    DesktopViewTos* instance,
+    DesktopViewTosCallback callback,
+    void* context);

lib/subghz/protocols/ford_v0.c

@@ -55,7 +55,6 @@ typedef struct SubGhzProtocolDecoderFordV0 {
     uint32_t serial;
     uint8_t button;
     uint32_t count;
-    uint8_t bs_magic;
 } SubGhzProtocolDecoderFordV0;
 typedef struct SubGhzProtocolEncoderFordV0 {
     SubGhzProtocolEncoderBase base;
@@ -67,8 +66,7 @@ typedef struct SubGhzProtocolEncoderFordV0 {
     uint32_t serial;
     uint8_t button;
     uint32_t count;
-    uint8_t bs;
-    uint8_t bs_magic;
+    uint8_t checksum;
 } SubGhzProtocolEncoderFordV0;
 typedef enum {
     FordV0DecoderStepReset = 0,
@@ -88,14 +86,13 @@ static void decode_ford_v0(
     uint16_t key2,
     uint32_t* serial,
     uint8_t* button,
-    uint32_t* count,
-    uint8_t* bs_magic);
+    uint32_t* count);
 static void encode_ford_v0(
     uint8_t header_byte,
     uint32_t serial,
     uint8_t button,
     uint32_t count,
-    uint8_t bs,
+    uint8_t checksum,
     uint64_t* key1);
 static bool ford_v0_process_data(SubGhzProtocolDecoderFordV0* instance);
 
@@ -122,7 +119,6 @@ const SubGhzProtocolEncoder subghz_protocol_ford_v0_encoder = {
     .yield = subghz_protocol_encoder_ford_v0_yield,
 };
 
-
 const SubGhzProtocol subghz_protocol_ford_v0 = {
     .name = FORD_PROTOCOL_V0_NAME,
     .type = SubGhzProtocolTypeDynamic,
@@ -133,19 +129,19 @@ const SubGhzProtocol subghz_protocol_ford_v0 = {
 };
 
 // =============================================================================
-// BS CALCULATION
-// BS = (counter_low_byte + 0x6F + (button << 4)) & 0xFF
+// Checksum CALCULATION
+// checksum = sum of bytes 1-7
 // =============================================================================
-static uint8_t ford_v0_calculate_bs_from_buf(uint8_t* buf) {
-    // BS = sum of bytes 1..7 of the pre-XOR buffer
+static uint8_t ford_v0_calculate_checksum_from_buf(uint8_t* buf) {
+    // Checksum = sum of bytes 1..7 of the pre-XOR buffer
     uint8_t checksum = 0;
-    for(int i = 1; i <= 7; i++) checksum += buf[i];
+    for(int i = 1; i <= 7; i++)
+        checksum += buf[i];
     return checksum;
 }
 // =============================================================================
 // CRC FUNCTIONS
 // =============================================================================
-
 static uint8_t ford_v0_popcount8(uint8_t x) {
     uint8_t count = 0;
     while(x) {
@@ -171,14 +167,14 @@ static uint8_t ford_v0_calculate_crc(uint8_t* buf) {
 
     return crc;
 }
-static uint8_t ford_v0_calculate_crc_for_tx(uint64_t key1, uint8_t bs) {
+static uint8_t ford_v0_calculate_crc_for_tx(uint64_t key1, uint8_t checksum) {
     uint8_t buf[16] = {0};
 
     for(int i = 0; i < 8; ++i) {
         buf[i] = (uint8_t)(key1 >> (56 - i * 8));
     }
 
-    buf[8] = bs;
+    buf[8] = checksum;
 
     uint8_t crc = ford_v0_calculate_crc(buf);
     return crc ^ 0x80;
@@ -207,8 +203,7 @@ static void decode_ford_v0(
     uint16_t key2,
     uint32_t* serial,
     uint8_t* button,
-    uint32_t* count,
-    uint8_t* bs_magic) {
+    uint32_t* count) {
     uint8_t buf[13] = {0};
 
     for(int i = 0; i < 8; ++i) {
@@ -219,7 +214,7 @@ static void decode_ford_v0(
     buf[9] = (uint8_t)(key2 & 0xFF);
 
     uint8_t tmp = buf[8];
-    uint8_t bs = tmp;
+    //uint8_t checksum = tmp;             //KEPT FOR CLARITY
     uint8_t parity = 0;
     uint8_t parity_any = (tmp != 0);
     while(tmp) {
@@ -261,9 +256,6 @@ static void decode_ford_v0(
     *button = (buf[5] >> 4) & 0x0F;
 
     *count = ((buf[5] & 0x0F) << 16) | (buf[6] << 8) | buf[7];
-
-    // BS is checksum of bytes 1..7 (pre-XOR), stored for verification only
-    *bs_magic = bs; // kept for compatibility, not used in encode
 }
 
 // =============================================================================
@@ -274,7 +266,7 @@ static void encode_ford_v0(
     uint32_t serial,
     uint8_t button,
     uint32_t count,
-    uint8_t bs,
+    uint8_t checksum,
     uint64_t* key1) {
     if(!key1) {
         FURI_LOG_E(TAG, "encode_ford_v0: NULL key1 pointer");
@@ -301,19 +293,19 @@ static void encode_ford_v0(
     buf[6] = pre_xor_6;
     buf[7] = pre_xor_7;
 
-    // BS = checksum of bytes 1..7 before XOR
-    bs = ford_v0_calculate_bs_from_buf(buf);
+    //checksum = checksum of bytes 1..7 before XOR
+    checksum = ford_v0_calculate_checksum_from_buf(buf);
 
     uint8_t post_xor_6 = (count_mid & 0xAA) | (count_low & 0x55);
     uint8_t post_xor_7 = (count_low & 0xAA) | (count_mid & 0x55);
 
     uint8_t parity = 0;
-    uint8_t tmp = bs;
+    uint8_t tmp = checksum;
     while(tmp) {
         parity ^= (tmp & 1);
         tmp >>= 1;
     }
-    bool parity_bit = (bs != 0) ? (parity != 0) : false;
+    bool parity_bit = (checksum != 0) ? (parity != 0) : false;
 
     if(parity_bit) {
         uint8_t xor_byte = post_xor_7;
@@ -342,11 +334,11 @@ static void encode_ford_v0(
 
     FURI_LOG_I(
         TAG,
-        "Encode: Sn=%08lX Btn=%d Cnt=%05lX BS=%02X",
+        "Encode: Sn=%08lX Btn=%d Cnt=%05lX Checksum=%02X",
         (unsigned long)serial,
         button,
         (unsigned long)count,
-        bs);
+        checksum);
     FURI_LOG_I(
         TAG,
         "Encode key1: %08lX%08lX",
@@ -361,10 +353,10 @@ static void encode_ford_v0(
 static uint8_t subghz_protocol_ford_v0_get_btn_code(void) {
     uint8_t custom_btn = subghz_custom_btn_get();
     uint8_t original_btn = subghz_custom_btn_get_original();
-    if(custom_btn == SUBGHZ_CUSTOM_BTN_OK)    return original_btn;
-    if(custom_btn == SUBGHZ_CUSTOM_BTN_UP)    return 0x01; // Lock
-    if(custom_btn == SUBGHZ_CUSTOM_BTN_DOWN)  return 0x02; // Unlock
-    if(custom_btn == SUBGHZ_CUSTOM_BTN_LEFT)  return 0x04; // Boot/Trunk
+    if(custom_btn == SUBGHZ_CUSTOM_BTN_OK) return original_btn;
+    if(custom_btn == SUBGHZ_CUSTOM_BTN_UP) return 0x01; // Lock
+    if(custom_btn == SUBGHZ_CUSTOM_BTN_DOWN) return 0x02; // Unlock
+    if(custom_btn == SUBGHZ_CUSTOM_BTN_LEFT) return 0x04; // Boot/Trunk
     if(custom_btn == SUBGHZ_CUSTOM_BTN_RIGHT) return 0x04; // Boot/Trunk
     return original_btn;
 }
@@ -387,8 +379,7 @@ void* subghz_protocol_encoder_ford_v0_alloc(SubGhzEnvironment* environment) {
     instance->serial = 0;
     instance->button = 0;
     instance->count = 0;
-    instance->bs = 0;
-    instance->bs_magic = 0;
+    instance->checksum = 0;
 
     FURI_LOG_I(TAG, "Encoder allocated");
     return instance;
@@ -586,14 +577,6 @@ SubGhzProtocolStatus
             break;
         }
         instance->generic.cnt = instance->count;
-
-        flipper_format_rewind(flipper_format);
-        uint32_t bs_magic_temp = 0;
-        if(!flipper_format_read_uint32(flipper_format, "BSMagic", &bs_magic_temp, 1))
-            instance->bs_magic = 0x6F;
-        else
-            instance->bs_magic = (uint8_t)bs_magic_temp;
-
         instance->count = (instance->count + 1) & 0xFFFFF;
         instance->generic.cnt = instance->count;
 
@@ -604,27 +587,33 @@ SubGhzProtocolStatus
 
         instance->button = subghz_protocol_ford_v0_get_btn_code();
 
-        // BS is calculated inside encode_ford_v0 from buf[1..7]
-        instance->bs = 0; // will be set by encode_ford_v0
+        // Checksum is calculated inside encode_ford_v0 from buf[1..7]
+        instance->checksum = 0; // will be set by encode_ford_v0
 
         encode_ford_v0(
             header_byte,
             instance->serial,
             instance->button,
             instance->count,
-            instance->bs,
+            instance->checksum,
             &instance->key1);
 
         instance->generic.data = instance->key1;
         instance->generic.data_count_bit = 64;
 
-        uint8_t calculated_crc = ford_v0_calculate_crc_for_tx(instance->key1, instance->bs);
-        instance->key2 = ((uint16_t)instance->bs << 8) | calculated_crc;
+        uint8_t calculated_crc = ford_v0_calculate_crc_for_tx(instance->key1, instance->checksum);
+        instance->key2 = ((uint16_t)instance->checksum << 8) | calculated_crc;
 
-        FURI_LOG_I(TAG, "Encoded: Sn=%08lX Btn=%02X Cnt=%05lX BS=%02X CRC=%02X key1=%08lX%08lX",
-            (unsigned long)instance->serial, instance->button,
-            (unsigned long)instance->count, instance->bs, calculated_crc,
-            (unsigned long)(instance->key1 >> 32), (unsigned long)(instance->key1 & 0xFFFFFFFF));
+        FURI_LOG_I(
+            TAG,
+            "Encoded: Sn=%08lX Btn=%02X Cnt=%05lX Checksum=%02X CRC=%02X key1=%08lX%08lX",
+            (unsigned long)instance->serial,
+            instance->button,
+            (unsigned long)instance->count,
+            instance->checksum,
+            calculated_crc,
+            (unsigned long)(instance->key1 >> 32),
+            (unsigned long)(instance->key1 & 0xFFFFFFFF));
 
         flipper_format_rewind(flipper_format);
         if(!flipper_format_read_uint32(
@@ -649,8 +638,8 @@ SubGhzProtocolStatus
         bool cnt_wr = flipper_format_insert_or_update_uint32(flipper_format, "Cnt", &temp, 1);
         temp = calculated_crc;
         flipper_format_insert_or_update_uint32(flipper_format, "CRC", &temp, 1);
-        temp = instance->bs;
-        flipper_format_insert_or_update_uint32(flipper_format, "BS", &temp, 1);
+        temp = instance->checksum;
+        flipper_format_insert_or_update_uint32(flipper_format, "Checksum", &temp, 1);
 
         FURI_LOG_I(TAG, "File updated: Key ok=%d Cnt ok=%d", key_wr, cnt_wr);
 
@@ -715,12 +704,7 @@ static bool ford_v0_process_data(SubGhzProtocolDecoderFordV0* instance) {
         uint16_t key2 = ~key2_raw;
 
         decode_ford_v0(
-            instance->key1,
-            key2,
-            &instance->serial,
-            &instance->button,
-            &instance->count,
-            &instance->bs_magic);
+            instance->key1, key2, &instance->serial, &instance->button, &instance->count);
 
         instance->key2 = key2;
         return true;
@@ -759,7 +743,6 @@ void subghz_protocol_decoder_ford_v0_reset(void* context) {
     instance->serial = 0;
     instance->button = 0;
     instance->count = 0;
-    instance->bs_magic = 0;
 }
 
 void subghz_protocol_decoder_ford_v0_feed(void* context, bool level, uint32_t duration) {
@@ -884,7 +867,7 @@ SubGhzProtocolStatus subghz_protocol_decoder_ford_v0_serialize(
 
     if(ret == SubGhzProtocolStatusOk) {
         uint32_t temp = (instance->key2 >> 8) & 0xFF;
-        flipper_format_write_uint32(flipper_format, "BS", &temp, 1);
+        flipper_format_write_uint32(flipper_format, "Checksum", &temp, 1);
 
         temp = instance->key2 & 0xFF;
         flipper_format_write_uint32(flipper_format, "CRC", &temp, 1);
@@ -895,9 +878,6 @@ SubGhzProtocolStatus subghz_protocol_decoder_ford_v0_serialize(
         flipper_format_write_uint32(flipper_format, "Btn", &temp, 1);
 
         flipper_format_write_uint32(flipper_format, "Cnt", &instance->count, 1);
-
-        temp = (uint32_t)instance->bs_magic;
-        flipper_format_write_uint32(flipper_format, "BSMagic", &temp, 1);
     }
 
     return ret;
@@ -911,7 +891,9 @@ SubGhzProtocolStatus
     SubGhzProtocolStatus ret = subghz_block_generic_deserialize_check_count_bit(
         &instance->generic, flipper_format, subghz_protocol_ford_v0_const.min_count_bit_for_found);
 
-    FURI_LOG_I(TAG, "Decoder deserialize: generic_ret=%d generic.data=%08lX%08lX",
+    FURI_LOG_I(
+        TAG,
+        "Decoder deserialize: generic_ret=%d generic.data=%08lX%08lX",
         ret,
         (unsigned long)(instance->generic.data >> 32),
         (unsigned long)(instance->generic.data & 0xFFFFFFFF));
@@ -921,12 +903,17 @@ SubGhzProtocolStatus
 
         flipper_format_rewind(flipper_format);
 
-        uint32_t bs_temp = 0;
+        uint32_t checksum_temp = 0;
         uint32_t crc_temp = 0;
-        flipper_format_read_uint32(flipper_format, "BS", &bs_temp, 1);
+        flipper_format_read_uint32(flipper_format, "Checksum", &checksum_temp, 1);
         flipper_format_read_uint32(flipper_format, "CRC", &crc_temp, 1);
-        instance->key2 = ((bs_temp & 0xFF) << 8) | (crc_temp & 0xFF);
-        FURI_LOG_I(TAG, "Decoder deserialize: BS=0x%02lX CRC=0x%02lX key2=0x%04X", bs_temp, crc_temp, instance->key2);
+        instance->key2 = ((checksum_temp & 0xFF) << 8) | (crc_temp & 0xFF);
+        FURI_LOG_I(
+            TAG,
+            "Decoder deserialize: Checksum=0x%02lX CRC=0x%02lX key2=0x%04X",
+            checksum_temp,
+            crc_temp,
+            instance->key2);
 
         flipper_format_read_uint32(flipper_format, "Serial", &instance->serial, 1);
         instance->generic.serial = instance->serial;
@@ -939,18 +926,16 @@ SubGhzProtocolStatus
         flipper_format_read_uint32(flipper_format, "Cnt", &instance->count, 1);
         instance->generic.cnt = instance->count;
 
-        FURI_LOG_I(TAG, "Decoder deserialize: Sn=0x%08lX Btn=0x%02X Cnt=0x%05lX",
+        FURI_LOG_I(
+            TAG,
+            "Decoder deserialize: Sn=0x%08lX Btn=0x%02X Cnt=0x%05lX",
             (unsigned long)instance->serial,
             instance->button,
             (unsigned long)instance->count);
 
-        uint32_t bs_magic_temp = 0;
-        if(flipper_format_read_uint32(flipper_format, "BSMagic", &bs_magic_temp, 1))
-            instance->bs_magic = bs_magic_temp;
-        else
-            instance->bs_magic = 0x6F;
-        FURI_LOG_I(TAG, "Decoder deserialize: BSMagic=0x%02X key1=%08lX%08lX",
-            instance->bs_magic,
+        FURI_LOG_I(
+            TAG,
+            "Decoder deserialize: key1=%08lX%08lX",
             (unsigned long)(instance->key1 >> 32),
             (unsigned long)(instance->key1 & 0xFFFFFFFF));
     }
@@ -998,6 +983,5 @@ void subghz_protocol_decoder_ford_v0_get_string(void* context, FuriString* outpu
         (unsigned long)instance->count,
         (unsigned int)display_btn,
         button_name,
-        crc_ok ? "OK" : "BAD"
-    );
+        crc_ok ? "OK" : "BAD");
 }