diff --git a/firmware/targets/f18/api_symbols.csv b/firmware/targets/f18/api_symbols.csv
index a689d5a21..a28259274 100644
--- a/firmware/targets/f18/api_symbols.csv
+++ b/firmware/targets/f18/api_symbols.csv
@@ -1,5 +1,5 @@
 entry,status,name,type,params
-Version,+,31.3,,
+Version,+,33.0,,
 Header,+,applications/services/bt/bt_service/bt.h,,
 Header,+,applications/services/cli/cli.h,,
 Header,+,applications/services/cli/cli_vcp.h,,
@@ -1029,12 +1029,13 @@ Function,+,furi_hal_mpu_protect_no_access,void,"FuriHalMpuRegion, uint32_t, Furi
 Function,+,furi_hal_mpu_protect_read_only,void,"FuriHalMpuRegion, uint32_t, FuriHalMPURegionSize"
 Function,-,furi_hal_os_init,void,
 Function,+,furi_hal_os_tick,void,
+Function,+,furi_hal_power_check_otg_fault,_Bool,
 Function,+,furi_hal_power_check_otg_status,void,
 Function,+,furi_hal_power_debug_get,void,"PropertyValueCallback, void*"
 Function,+,furi_hal_power_disable_external_3_3v,void,
 Function,+,furi_hal_power_disable_otg,void,
 Function,+,furi_hal_power_enable_external_3_3v,void,
-Function,+,furi_hal_power_enable_otg,void,
+Function,+,furi_hal_power_enable_otg,_Bool,
 Function,+,furi_hal_power_gauge_is_ok,_Bool,
 Function,+,furi_hal_power_get_bat_health_pct,uint8_t,
 Function,+,furi_hal_power_get_battery_charge_voltage_limit,float,
diff --git a/firmware/targets/f7/api_symbols.csv b/firmware/targets/f7/api_symbols.csv
index a636a757a..2dc6c5cb7 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,+,31.3,,
+Version,+,33.0,,
 Header,+,applications/services/bt/bt_service/bt.h,,
 Header,+,applications/services/cli/cli.h,,
 Header,+,applications/services/cli/cli_vcp.h,,
@@ -1279,12 +1279,13 @@ Function,+,furi_hal_nfc_tx_rx,_Bool,"FuriHalNfcTxRxContext*, uint16_t"
 Function,+,furi_hal_nfc_tx_rx_full,_Bool,FuriHalNfcTxRxContext*
 Function,-,furi_hal_os_init,void,
 Function,+,furi_hal_os_tick,void,
+Function,+,furi_hal_power_check_otg_fault,_Bool,
 Function,+,furi_hal_power_check_otg_status,void,
 Function,+,furi_hal_power_debug_get,void,"PropertyValueCallback, void*"
 Function,+,furi_hal_power_disable_external_3_3v,void,
 Function,+,furi_hal_power_disable_otg,void,
 Function,+,furi_hal_power_enable_external_3_3v,void,
-Function,+,furi_hal_power_enable_otg,void,
+Function,+,furi_hal_power_enable_otg,_Bool,
 Function,+,furi_hal_power_gauge_is_ok,_Bool,
 Function,+,furi_hal_power_get_bat_health_pct,uint8_t,
 Function,+,furi_hal_power_get_battery_charge_voltage_limit,float,
diff --git a/firmware/targets/f7/furi_hal/furi_hal_power.c b/firmware/targets/f7/furi_hal/furi_hal_power.c
index ec405f108..5edde86e9 100644
--- a/firmware/targets/f7/furi_hal/furi_hal_power.c
+++ b/firmware/targets/f7/furi_hal/furi_hal_power.c
@@ -284,10 +284,15 @@ void furi_hal_power_reset() {
     NVIC_SystemReset();
 }
 
-void furi_hal_power_enable_otg() {
+bool furi_hal_power_enable_otg() {
     furi_hal_i2c_acquire(&furi_hal_i2c_handle_power);
+    bq25896_set_boost_lim(&furi_hal_i2c_handle_power, BoostLim_2150);
     bq25896_enable_otg(&furi_hal_i2c_handle_power);
+    furi_delay_ms(30);
+    bool ret = bq25896_is_otg_enabled(&furi_hal_i2c_handle_power);
+    bq25896_set_boost_lim(&furi_hal_i2c_handle_power, BoostLim_1400);
     furi_hal_i2c_release(&furi_hal_i2c_handle_power);
+    return ret;
 }
 
 void furi_hal_power_disable_otg() {
@@ -317,6 +322,13 @@ void furi_hal_power_set_battery_charge_voltage_limit(float voltage) {
     furi_hal_i2c_release(&furi_hal_i2c_handle_power);
 }
 
+bool furi_hal_power_check_otg_fault() {
+    furi_hal_i2c_acquire(&furi_hal_i2c_handle_power);
+    bool ret = bq25896_check_otg_fault(&furi_hal_i2c_handle_power);
+    furi_hal_i2c_release(&furi_hal_i2c_handle_power);
+    return ret;
+}
+
 void furi_hal_power_check_otg_status() {
     furi_hal_i2c_acquire(&furi_hal_i2c_handle_power);
     if(bq25896_check_otg_fault(&furi_hal_i2c_handle_power))
diff --git a/firmware/targets/furi_hal_include/furi_hal_power.h b/firmware/targets/furi_hal_include/furi_hal_power.h
index 00182fa28..6b4b6cd89 100644
--- a/firmware/targets/furi_hal_include/furi_hal_power.h
+++ b/firmware/targets/furi_hal_include/furi_hal_power.h
@@ -99,12 +99,16 @@ void furi_hal_power_reset();
 
 /** OTG enable
  */
-void furi_hal_power_enable_otg();
+bool furi_hal_power_enable_otg();
 
 /** OTG disable
  */
 void furi_hal_power_disable_otg();
 
+/** Check OTG status fault
+ */
+bool furi_hal_power_check_otg_fault();
+
 /** Check OTG status and disable it if falt happened
  */
 void furi_hal_power_check_otg_status();
diff --git a/lib/drivers/bq25896.c b/lib/drivers/bq25896.c
index 4c1d687cb..f675233bd 100644
--- a/lib/drivers/bq25896.c
+++ b/lib/drivers/bq25896.c
@@ -61,7 +61,7 @@ void bq25896_init(FuriHalI2cBusHandle* handle) {
 
     // OTG power configuration
     bq25896_regs.r0A.BOOSTV = 0x8; // BOOST Voltage: 5.062V
-    bq25896_regs.r0A.BOOST_LIM = BOOST_LIM_1400; // BOOST Current limit: 1.4A
+    bq25896_regs.r0A.BOOST_LIM = BoostLim_1400; // BOOST Current limit: 1.4A
     furi_hal_i2c_write_reg_8(
         handle, BQ25896_ADDRESS, 0x0A, *(uint8_t*)&bq25896_regs.r0A, BQ25896_I2C_TIMEOUT);
 
@@ -74,6 +74,12 @@ void bq25896_init(FuriHalI2cBusHandle* handle) {
         BQ25896_I2C_TIMEOUT);
 }
 
+void bq25896_set_boost_lim(FuriHalI2cBusHandle* handle, BoostLim boost_lim) {
+    bq25896_regs.r0A.BOOST_LIM = boost_lim;
+    furi_hal_i2c_write_reg_8(
+        handle, BQ25896_ADDRESS, 0x0A, *(uint8_t*)&bq25896_regs.r0A, BQ25896_I2C_TIMEOUT);
+}
+
 void bq25896_poweroff(FuriHalI2cBusHandle* handle) {
     bq25896_regs.r09.BATFET_DIS = 1;
     furi_hal_i2c_write_reg_8(
diff --git a/lib/drivers/bq25896.h b/lib/drivers/bq25896.h
index f3d1d0e05..ce7293960 100644
--- a/lib/drivers/bq25896.h
+++ b/lib/drivers/bq25896.h
@@ -9,6 +9,9 @@
 /** Initialize Driver */
 void bq25896_init(FuriHalI2cBusHandle* handle);
 
+/** Set boost lim*/
+void bq25896_set_boost_lim(FuriHalI2cBusHandle* handle, BoostLim boost_lim);
+
 /** Send device into shipping mode */
 void bq25896_poweroff(FuriHalI2cBusHandle* handle);
 
diff --git a/lib/drivers/bq25896_reg.h b/lib/drivers/bq25896_reg.h
index 3cb3d7140..a6ca3e1c7 100644
--- a/lib/drivers/bq25896_reg.h
+++ b/lib/drivers/bq25896_reg.h
@@ -159,14 +159,16 @@ typedef struct {
 #define BOOSTV_128 (1 << 1)
 #define BOOSTV_64 (1 << 0)
 
-#define BOOST_LIM_500 (0b000)
-#define BOOST_LIM_750 (0b001)
-#define BOOST_LIM_1200 (0b010)
-#define BOOST_LIM_1400 (0b011)
-#define BOOST_LIM_1650 (0b100)
-#define BOOST_LIM_1875 (0b101)
-#define BOOST_LIM_2150 (0b110)
-#define BOOST_LIM_RSVD (0b111)
+typedef enum {
+    BoostLim_500 = 0b000,
+    BoostLim_750 = 0b001,
+    BoostLim_1200 = 0b010,
+    BoostLim_1400 = 0b011,
+    BoostLim_1650 = 0b100,
+    BoostLim_1875 = 0b101,
+    BoostLim_2150 = 0b110,
+    BoostLim_Rsvd = 0b111,
+} BoostLim;
 
 typedef struct {
     uint8_t BOOST_LIM : 3; // Boost Mode Current Limit
diff --git a/lib/nfc/nfc_worker.c b/lib/nfc/nfc_worker.c
index 60847c3c7..61212540d 100644
--- a/lib/nfc/nfc_worker.c
+++ b/lib/nfc/nfc_worker.c
@@ -809,6 +809,8 @@ void nfc_worker_emulate_mf_ultralight(NfcWorker* nfc_worker) {
     emulator.auth_received_callback = nfc_worker_mf_ultralight_auth_received_callback;
     emulator.context = nfc_worker;
 
+    rfal_platform_spi_acquire();
+
     while(nfc_worker->state == NfcWorkerStateMfUltralightEmulate) {
         mf_ul_reset_emulation(&emulator, true);
         furi_hal_nfc_emulate_nfca(
@@ -828,6 +830,8 @@ void nfc_worker_emulate_mf_ultralight(NfcWorker* nfc_worker) {
             emulator.data_changed = false;
         }
     }
+
+    rfal_platform_spi_release();
 }
 
 static bool nfc_worker_mf_get_b_key_from_sector_trailer(