diff --git a/applications/debug/locale_test/locale_test.c b/applications/debug/locale_test/locale_test.c
index 594011de0..46248cf3c 100644
--- a/applications/debug/locale_test/locale_test.c
+++ b/applications/debug/locale_test/locale_test.c
@@ -21,8 +21,8 @@ static void locale_test_view_draw_callback(Canvas* canvas, void* _model) {
     FuriString* tmp_string = furi_string_alloc();
 
     float temp = 25.3f;
-    LocaleMeasurementUnit units = locale_get_measurement_unit();
-    if(units == LocaleMeasurementUnitMetric) {
+    LocaleMeasurementUnits units = locale_get_measurement_unit();
+    if(units == LocaleMeasurementUnitsMetric) {
         furi_string_printf(tmp_string, "Temp: %5.1fC", (double)temp);
     } else {
         temp = locale_celsius_to_fahrenheit(temp);
diff --git a/applications/plugins/badapple/bad_apple_10px.png b/applications/plugins/badapple/bad_apple_10px.png
deleted file mode 100644
index 303269273..000000000
Binary files a/applications/plugins/badapple/bad_apple_10px.png and /dev/null differ
diff --git a/applications/services/locale/locale.c b/applications/services/locale/locale.c
index 805f25c3f..508753f53 100644
--- a/applications/services/locale/locale.c
+++ b/applications/services/locale/locale.c
@@ -2,28 +2,28 @@
 
 #define TAG "LocaleSrv"
 
-LocaleMeasurementUnit locale_get_measurement_unit(void) {
-    return furi_hal_rtc_get_locale_units();
+LocaleMeasurementUnits locale_get_measurement_unit(void) {
+    return (LocaleMeasurementUnits)furi_hal_rtc_get_locale_units();
 }
 
-void locale_set_measurement_unit(LocaleMeasurementUnit format) {
-    furi_hal_rtc_set_locale_units(format);
+void locale_set_measurement_unit(LocaleMeasurementUnits format) {
+    furi_hal_rtc_set_locale_units((FuriHalRtcLocaleUnits)format);
 }
 
 LocaleTimeFormat locale_get_time_format(void) {
-    return furi_hal_rtc_get_locale_timeformat();
+    return (LocaleTimeFormat)furi_hal_rtc_get_locale_timeformat();
 }
 
 void locale_set_time_format(LocaleTimeFormat format) {
-    furi_hal_rtc_set_locale_timeformat(format);
+    furi_hal_rtc_set_locale_timeformat((FuriHalRtcLocaleTimeFormat)format);
 }
 
 LocaleDateFormat locale_get_date_format(void) {
-    return furi_hal_rtc_get_locale_dateformat();
+    return (LocaleDateFormat)furi_hal_rtc_get_locale_dateformat();
 }
 
 void locale_set_date_format(LocaleDateFormat format) {
-    furi_hal_rtc_set_locale_dateformat(format);
+    furi_hal_rtc_set_locale_dateformat((FuriHalRtcLocaleDateFormat)format);
 }
 
 float locale_fahrenheit_to_celsius(float temp_f) {
@@ -36,9 +36,9 @@ float locale_celsius_to_fahrenheit(float temp_c) {
 
 void locale_format_time(
     FuriString* out_str,
-    FuriHalRtcDateTime* datetime,
-    LocaleTimeFormat format,
-    bool show_seconds) {
+    const FuriHalRtcDateTime* datetime,
+    const LocaleTimeFormat format,
+    const bool show_seconds) {
     furi_assert(out_str);
     furi_assert(datetime);
 
@@ -66,9 +66,9 @@ void locale_format_time(
 
 void locale_format_date(
     FuriString* out_str,
-    FuriHalRtcDateTime* datetime,
-    LocaleDateFormat format,
-    char* separator) {
+    const FuriHalRtcDateTime* datetime,
+    const LocaleDateFormat format,
+    const char* separator) {
     furi_assert(out_str);
     furi_assert(datetime);
     furi_assert(separator);
diff --git a/applications/services/locale/locale.h b/applications/services/locale/locale.h
index 6491efbf6..aded291e3 100644
--- a/applications/services/locale/locale.h
+++ b/applications/services/locale/locale.h
@@ -9,44 +9,98 @@ extern "C" {
 #endif
 
 typedef enum {
-    LocaleMeasurementUnitMetric = 0, /**< Meric mesurement units */
-    LocaleMeasurementUnitImperial, /**< Imperial mesurement units */
-} LocaleMeasurementUnit;
+    LocaleMeasurementUnitsMetric = 0, /**< Metric measurement units */
+    LocaleMeasurementUnitsImperial = 1, /**< Imperial measurement units */
+} LocaleMeasurementUnits;
 
 typedef enum {
     LocaleTimeFormat24h = 0, /**< 24-hour format */
-    LocaleTimeFormat12h, /**< 12-hour format */
+    LocaleTimeFormat12h = 1, /**< 12-hour format */
 } LocaleTimeFormat;
 
 typedef enum {
     LocaleDateFormatDMY = 0, /**< Day/Month/Year */
-    LocaleDateFormatMDY, /**< Month/Day/Year */
-    LocaleDateFormatYMD, /**< Year/Month/Day */
+    LocaleDateFormatMDY = 1, /**< Month/Day/Year */
+    LocaleDateFormatYMD = 2, /**< Year/Month/Day */
 } LocaleDateFormat;
 
-LocaleMeasurementUnit locale_get_measurement_unit(void);
-void locale_set_measurement_unit(LocaleMeasurementUnit format);
+/** Get Locale measurement units
+ *
+ * @return     The locale measurement units.
+ */
+LocaleMeasurementUnits locale_get_measurement_unit();
 
+/** Set locale measurement units
+ *
+ * @param[in]  format  The locale measurements units
+ */
+void locale_set_measurement_unit(LocaleMeasurementUnits format);
+
+/** Convert Fahrenheit to Celsius
+ *
+ * @param[in]  temp_f  The Temperature in Fahrenheit
+ *
+ * @return     The Temperature in Celsius 
+ */
 float locale_fahrenheit_to_celsius(float temp_f);
+
+/** Convert Celsius to Fahrenheit
+ *
+ * @param[in]  temp_c  The Temperature in Celsius 
+ *
+ * @return     The Temperature in Fahrenheit
+ */
 float locale_celsius_to_fahrenheit(float temp_c);
 
-LocaleTimeFormat locale_get_time_format(void);
+/** Get Locale time format
+ *
+ * @return     The locale time format.
+ */
+LocaleTimeFormat locale_get_time_format();
+
+/** Set Locale Time Format
+ *
+ * @param[in]  format  The Locale Time Format
+ */
 void locale_set_time_format(LocaleTimeFormat format);
 
+/** Format time to furi string
+ *
+ * @param[out] out_str       The FuriString to store formatted time
+ * @param[in]  datetime      Pointer to the datetime
+ * @param[in]  format        The Locale Time Format
+ * @param[in]  show_seconds  The show seconds flag
+ */
 void locale_format_time(
     FuriString* out_str,
-    FuriHalRtcDateTime* datetime,
-    LocaleTimeFormat format,
-    bool show_seconds);
+    const FuriHalRtcDateTime* datetime,
+    const LocaleTimeFormat format,
+    const bool show_seconds);
 
-LocaleDateFormat locale_get_date_format(void);
+/** Get Locale DateFormat
+ *
+ * @return     The Locale DateFormat.
+ */
+LocaleDateFormat locale_get_date_format();
+
+/** Set Locale DateFormat
+ *
+ * @param[in]  format  The Locale DateFormat
+ */
 void locale_set_date_format(LocaleDateFormat format);
 
+/** Format date to furi string
+ *
+ * @param[out] out_str    The FuriString to store formatted date
+ * @param[in]  datetime   Pointer to the datetime
+ * @param[in]  format     The format
+ * @param[in]  separator  The separator
+ */
 void locale_format_date(
     FuriString* out_str,
-    FuriHalRtcDateTime* datetime,
-    LocaleDateFormat format,
-    char* separator);
+    const FuriHalRtcDateTime* datetime,
+    const LocaleDateFormat format,
+    const char* separator);
 
 #ifdef __cplusplus
 }
diff --git a/applications/services/notification/notification_app.c b/applications/services/notification/notification_app.c
index 4f6d42aa0..b6579f547 100644
--- a/applications/services/notification/notification_app.c
+++ b/applications/services/notification/notification_app.c
@@ -150,7 +150,7 @@ void notification_vibro_off() {
 }
 
 void notification_sound_on(float freq, float volume) {
-    if(furi_hal_speaker_acquire(30)) {
+    if(furi_hal_speaker_is_mine() || furi_hal_speaker_acquire(30)) {
         furi_hal_speaker_start(freq, volume);
     }
 }
diff --git a/applications/settings/system/system_settings.c b/applications/settings/system/system_settings.c
index b3e9c74c7..112cbd4e0 100644
--- a/applications/settings/system/system_settings.c
+++ b/applications/settings/system/system_settings.c
@@ -77,8 +77,8 @@ const char* const mesurement_units_text[] = {
 };
 
 const uint32_t mesurement_units_value[] = {
-    LocaleMeasurementUnitMetric,
-    LocaleMeasurementUnitImperial,
+    LocaleMeasurementUnitsMetric,
+    LocaleMeasurementUnitsImperial,
 };
 
 static void mesurement_units_changed(VariableItem* item) {
@@ -145,7 +145,7 @@ SystemSettings* system_settings_alloc() {
     uint8_t value_index;
     app->var_item_list = variable_item_list_alloc();
 
-  item = variable_item_list_add(
+    item = variable_item_list_add(
         app->var_item_list,
         "Units",
         COUNT_OF(mesurement_units_text),
@@ -225,4 +225,4 @@ int32_t system_settings_app(void* p) {
     view_dispatcher_run(app->view_dispatcher);
     system_settings_free(app);
     return 0;
-}
+}
\ No newline at end of file
diff --git a/firmware/targets/f7/api_symbols.csv b/firmware/targets/f7/api_symbols.csv
index 1fbda971d..414a78f11 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,+,12.0,,
+Version,v,12.1,,
 Header,+,applications/services/bt/bt_service/bt.h,,
 Header,+,applications/services/cli/cli.h,,
 Header,+,applications/services/cli/cli_vcp.h,,
@@ -1295,6 +1295,9 @@ Function,+,furi_hal_rtc_get_boot_mode,FuriHalRtcBootMode,
 Function,+,furi_hal_rtc_get_datetime,void,FuriHalRtcDateTime*
 Function,+,furi_hal_rtc_get_fault_data,uint32_t,
 Function,+,furi_hal_rtc_get_heap_track_mode,FuriHalRtcHeapTrackMode,
+Function,?,furi_hal_rtc_get_locale_dateformat,FuriHalRtcLocaleDateFormat,
+Function,?,furi_hal_rtc_get_locale_timeformat,FuriHalRtcLocaleTimeFormat,
+Function,?,furi_hal_rtc_get_locale_units,FuriHalRtcLocaleUnits,
 Function,+,furi_hal_rtc_get_log_level,uint8_t,
 Function,+,furi_hal_rtc_get_pin_fails,uint32_t,
 Function,+,furi_hal_rtc_get_register,uint32_t,FuriHalRtcRegister
@@ -1308,6 +1311,9 @@ Function,+,furi_hal_rtc_set_datetime,void,FuriHalRtcDateTime*
 Function,+,furi_hal_rtc_set_fault_data,void,uint32_t
 Function,+,furi_hal_rtc_set_flag,void,FuriHalRtcFlag
 Function,+,furi_hal_rtc_set_heap_track_mode,void,FuriHalRtcHeapTrackMode
+Function,+,furi_hal_rtc_set_locale_dateformat,void,FuriHalRtcLocaleDateFormat
+Function,+,furi_hal_rtc_set_locale_timeformat,void,FuriHalRtcLocaleTimeFormat
+Function,+,furi_hal_rtc_set_locale_units,void,FuriHalRtcLocaleUnits
 Function,+,furi_hal_rtc_set_log_level,void,uint8_t
 Function,+,furi_hal_rtc_set_pin_fails,void,uint32_t
 Function,+,furi_hal_rtc_set_register,void,"FuriHalRtcRegister, uint32_t"
@@ -1775,13 +1781,13 @@ Function,+,loading_free,void,Loading*
 Function,+,loading_get_view,View*,Loading*
 Function,+,locale_celsius_to_fahrenheit,float,float
 Function,+,locale_fahrenheit_to_celsius,float,float
-Function,+,locale_format_date,void,"FuriString*, FuriHalRtcDateTime*, LocaleDateFormat, char*"
-Function,+,locale_format_time,void,"FuriString*, FuriHalRtcDateTime*, LocaleTimeFormat, _Bool"
+Function,+,locale_format_date,void,"FuriString*, const FuriHalRtcDateTime*, const LocaleDateFormat, const char*"
+Function,+,locale_format_time,void,"FuriString*, const FuriHalRtcDateTime*, const LocaleTimeFormat, const _Bool"
 Function,+,locale_get_date_format,LocaleDateFormat,
-Function,+,locale_get_measurement_unit,LocaleMeasurementUnit,
+Function,+,locale_get_measurement_unit,LocaleMeasurementUnits,
 Function,+,locale_get_time_format,LocaleTimeFormat,
 Function,+,locale_set_date_format,void,LocaleDateFormat
-Function,+,locale_set_measurement_unit,void,LocaleMeasurementUnit
+Function,+,locale_set_measurement_unit,void,LocaleMeasurementUnits
 Function,+,locale_set_time_format,void,LocaleTimeFormat
 Function,-,localtime,tm*,const time_t*
 Function,-,localtime_r,tm*,"const time_t*, tm*"
diff --git a/firmware/targets/f7/furi_hal/furi_hal_rtc.c b/firmware/targets/f7/furi_hal/furi_hal_rtc.c
index 818fb5d21..7e3ee0bb1 100644
--- a/firmware/targets/f7/furi_hal/furi_hal_rtc.c
+++ b/firmware/targets/f7/furi_hal/furi_hal_rtc.c
@@ -29,11 +29,11 @@ typedef struct {
     uint8_t log_level : 4;
     uint8_t log_reserved : 4;
     uint8_t flags;
-    uint8_t boot_mode : 4;
-    uint8_t heap_track_mode : 2;
-    uint8_t locale_units : 1;
-    uint8_t locale_timeformat : 1;
-    uint8_t locale_dateformat : 2;
+    FuriHalRtcBootMode boot_mode : 4;
+    FuriHalRtcHeapTrackMode heap_track_mode : 2;
+    FuriHalRtcLocaleUnits locale_units : 1;
+    FuriHalRtcLocaleTimeFormat locale_timeformat : 1;
+    FuriHalRtcLocaleDateFormat locale_dateformat : 2;
     uint8_t reserved : 6;
 } SystemReg;
 
@@ -225,7 +225,7 @@ void furi_hal_rtc_set_boot_mode(FuriHalRtcBootMode mode) {
 FuriHalRtcBootMode furi_hal_rtc_get_boot_mode() {
     uint32_t data_reg = furi_hal_rtc_get_register(FuriHalRtcRegisterSystem);
     SystemReg* data = (SystemReg*)&data_reg;
-    return (FuriHalRtcBootMode)data->boot_mode;
+    return data->boot_mode;
 }
 
 void furi_hal_rtc_set_heap_track_mode(FuriHalRtcHeapTrackMode mode) {
@@ -238,47 +238,48 @@ void furi_hal_rtc_set_heap_track_mode(FuriHalRtcHeapTrackMode mode) {
 FuriHalRtcHeapTrackMode furi_hal_rtc_get_heap_track_mode() {
     uint32_t data_reg = furi_hal_rtc_get_register(FuriHalRtcRegisterSystem);
     SystemReg* data = (SystemReg*)&data_reg;
-    return (FuriHalRtcHeapTrackMode)data->heap_track_mode;
+    return data->heap_track_mode;
 }
 
-void furi_hal_rtc_set_locale_units(uint8_t mode) {
+void furi_hal_rtc_set_locale_units(FuriHalRtcLocaleUnits value) {
     uint32_t data_reg = furi_hal_rtc_get_register(FuriHalRtcRegisterSystem);
     SystemReg* data = (SystemReg*)&data_reg;
-    data->locale_units = mode;
+    data->locale_units = value;
     furi_hal_rtc_set_register(FuriHalRtcRegisterSystem, data_reg);
 }
 
-uint8_t furi_hal_rtc_get_locale_units() {
+FuriHalRtcLocaleUnits furi_hal_rtc_get_locale_units() {
     uint32_t data_reg = furi_hal_rtc_get_register(FuriHalRtcRegisterSystem);
     SystemReg* data = (SystemReg*)&data_reg;
-    return (uint8_t)data->locale_units;
+    return data->locale_units;
 }
 
-void furi_hal_rtc_set_locale_timeformat(uint8_t mode) {
+void furi_hal_rtc_set_locale_timeformat(FuriHalRtcLocaleTimeFormat value) {
     uint32_t data_reg = furi_hal_rtc_get_register(FuriHalRtcRegisterSystem);
     SystemReg* data = (SystemReg*)&data_reg;
-    data->locale_timeformat = mode;
+    data->locale_timeformat = value;
     furi_hal_rtc_set_register(FuriHalRtcRegisterSystem, data_reg);
 }
 
-uint8_t furi_hal_rtc_get_locale_timeformat() {
+FuriHalRtcLocaleTimeFormat furi_hal_rtc_get_locale_timeformat() {
     uint32_t data_reg = furi_hal_rtc_get_register(FuriHalRtcRegisterSystem);
     SystemReg* data = (SystemReg*)&data_reg;
-    return (uint8_t)data->locale_timeformat;
+    return data->locale_timeformat;
 }
 
-void furi_hal_rtc_set_locale_dateformat(uint8_t mode) {
+void furi_hal_rtc_set_locale_dateformat(FuriHalRtcLocaleDateFormat value) {
     uint32_t data_reg = furi_hal_rtc_get_register(FuriHalRtcRegisterSystem);
     SystemReg* data = (SystemReg*)&data_reg;
-    data->locale_dateformat = mode;
+    data->locale_dateformat = value;
     furi_hal_rtc_set_register(FuriHalRtcRegisterSystem, data_reg);
 }
 
-uint8_t furi_hal_rtc_get_locale_dateformat() {
+FuriHalRtcLocaleDateFormat furi_hal_rtc_get_locale_dateformat() {
     uint32_t data_reg = furi_hal_rtc_get_register(FuriHalRtcRegisterSystem);
     SystemReg* data = (SystemReg*)&data_reg;
-    return (uint8_t)data->locale_dateformat;
+    return data->locale_dateformat;
 }
+
 void furi_hal_rtc_set_datetime(FuriHalRtcDateTime* datetime) {
     furi_assert(datetime);
 
diff --git a/firmware/targets/furi_hal_include/furi_hal_rtc.h b/firmware/targets/furi_hal_include/furi_hal_rtc.h
index 5ce122271..8d40353a2 100644
--- a/firmware/targets/furi_hal_include/furi_hal_rtc.h
+++ b/firmware/targets/furi_hal_include/furi_hal_rtc.h
@@ -59,6 +59,22 @@ typedef enum {
     FuriHalRtcRegisterMAX, /**< Service value, do not use */
 } FuriHalRtcRegister;
 
+typedef enum {
+    FuriHalRtcLocaleUnitsMetric = 0, /**< Metric measurement units */
+    FuriHalRtcLocaleUnitsImperial = 1, /**< Imperial measurement units */
+} FuriHalRtcLocaleUnits;
+
+typedef enum {
+    FuriHalRtcLocaleTimeFormat24h = 0, /**< 24-hour format */
+    FuriHalRtcLocaleTimeFormat12h = 1, /**< 12-hour format */
+} FuriHalRtcLocaleTimeFormat;
+
+typedef enum {
+    FuriHalRtcLocaleDateFormatDMY = 0, /**< Day/Month/Year */
+    FuriHalRtcLocaleDateFormatMDY = 1, /**< Month/Day/Year */
+    FuriHalRtcLocaleDateFormatYMD = 2, /**< Year/Month/Day */
+} FuriHalRtcLocaleDateFormat;
+
 /** Early initialization */
 void furi_hal_rtc_init_early();
 
@@ -90,6 +106,47 @@ void furi_hal_rtc_set_heap_track_mode(FuriHalRtcHeapTrackMode mode);
 
 FuriHalRtcHeapTrackMode furi_hal_rtc_get_heap_track_mode();
 
+/** Set locale units
+ *
+ * @param[in]  mode  The RTC Locale Units
+ */
+void furi_hal_rtc_set_locale_units(FuriHalRtcLocaleUnits value);
+
+/** Get RTC Locale Units
+ *
+ * @return     The RTC Locale Units.
+ */
+FuriHalRtcLocaleUnits furi_hal_rtc_get_locale_units();
+
+/** Set RTC Locale Time Format
+ *
+ * @param[in]  value  The RTC Locale Time Format
+ */
+void furi_hal_rtc_set_locale_timeformat(FuriHalRtcLocaleTimeFormat value);
+
+/** Get RTC Locale Time Format
+ *
+ * @return     The RTC Locale Time Format.
+ */
+FuriHalRtcLocaleTimeFormat furi_hal_rtc_get_locale_timeformat();
+
+/** Set RTC Locale Date Format
+ *
+ * @param[in]  value  The RTC Locale Date Format
+ */
+void furi_hal_rtc_set_locale_dateformat(FuriHalRtcLocaleDateFormat value);
+
+/** Get RTC Locale Date Format
+ *
+ * @return     The RTC Locale Date Format
+ */
+FuriHalRtcLocaleDateFormat furi_hal_rtc_get_locale_dateformat();
+
+/** Set RTC Date Time
+ *
+ * @param      datetime  The date time to set
+ */
+
 void furi_hal_rtc_set_datetime(FuriHalRtcDateTime* datetime);
 
 void furi_hal_rtc_get_datetime(FuriHalRtcDateTime* datetime);
diff --git a/scripts/fbt_tools/fbt_extapps.py b/scripts/fbt_tools/fbt_extapps.py
index f0015cf25..f16d4c064 100644
--- a/scripts/fbt_tools/fbt_extapps.py
+++ b/scripts/fbt_tools/fbt_extapps.py
@@ -167,6 +167,7 @@ def prepare_app_metadata(target, source, env):
     sdk_cache = SdkCache(env["SDK_DEFINITION"].path, load_version_only=True)
 
     if not sdk_cache.is_buildable():
+        print(target, source, env)
         raise UserError(
             "SDK version is not finalized, please review changes and re-run operation"
         )
diff --git a/scripts/fbt_tools/fbt_sdk.py b/scripts/fbt_tools/fbt_sdk.py
index 3a37eacc9..48faf2125 100644
--- a/scripts/fbt_tools/fbt_sdk.py
+++ b/scripts/fbt_tools/fbt_sdk.py
@@ -219,9 +219,7 @@ def gen_sdk_data(sdk_cache: SdkCache):
 
 def _check_sdk_is_up2date(sdk_cache: SdkCache):
     if not sdk_cache.is_buildable():
-        raise UserError(
-            "SDK version is not finalized, please review changes and re-run operation"
-        )
+        print("Working with WIP SDK. Expect failures")
 
 
 def validate_sdk_cache(source, target, env):
diff --git a/scripts/testing/await_flipper.py b/scripts/testing/await_flipper.py
index 1f0d16194..efae6765d 100755
--- a/scripts/testing/await_flipper.py
+++ b/scripts/testing/await_flipper.py
@@ -24,7 +24,7 @@ def flp_serial_by_name(flp_name):
             return ""
 
 
-UPDATE_TIMEOUT = 30
+UPDATE_TIMEOUT = 60
 
 
 def main():