diff --git a/firmware/config/stm32h7ems/efifeatures.h b/firmware/config/stm32h7ems/efifeatures.h
index 421f930693..0bf1fef595 100644
--- a/firmware/config/stm32h7ems/efifeatures.h
+++ b/firmware/config/stm32h7ems/efifeatures.h
@@ -2,12 +2,6 @@
 
 #pragma once
 
-#undef EFI_MEMS
-#define EFI_MEMS FALSE
-
-#undef EFI_USB_SERIAL
-#define EFI_USB_SERIAL FALSE
-
 #undef EFI_INTERNAL_FLASH
 #define EFI_INTERNAL_FLASH FALSE
 
@@ -35,9 +29,6 @@
 
 #undef EFI_CONSOLE_UART_DEVICE
 
-#undef EFI_UART_GPS
-#define EFI_UART_GPS FALSE
-
 #undef BOARD_TLE6240_COUNT
 #undef BOARD_MC33972_COUNT
 #undef BOARD_TLE8888_COUNT
@@ -50,6 +41,3 @@
 
 #undef BOARD_EXT_GPIOCHIPS
  #define BOARD_EXT_GPIOCHIPS			(BOARD_TLE6240_COUNT + BOARD_MC33972_COUNT + BOARD_TLE8888_COUNT + BOARD_DRV8860_COUNT + BOARD_MC33810_COUNT)
-
-#undef ENABLE_PERF_TRACE
-#define ENABLE_PERF_TRACE FALSE
\ No newline at end of file
diff --git a/firmware/config/stm32h7ems/halconf.h b/firmware/config/stm32h7ems/halconf.h
index d98d2c8e54..6eea9828e7 100644
--- a/firmware/config/stm32h7ems/halconf.h
+++ b/firmware/config/stm32h7ems/halconf.h
@@ -149,7 +149,7 @@
  * @brief   Enables the SERIAL over USB subsystem.
  */
 #if !defined(HAL_USE_SERIAL_USB) || defined(__DOXYGEN__)
-#define HAL_USE_SERIAL_USB                  FALSE
+#define HAL_USE_SERIAL_USB                  TRUE
 #endif
 
 /**
@@ -184,7 +184,7 @@
  * @brief   Enables the USB subsystem.
  */
 #if !defined(HAL_USE_USB) || defined(__DOXYGEN__)
-#define HAL_USE_USB                         FALSE
+#define HAL_USE_USB                         TRUE
 #endif
 
 /**
@@ -427,7 +427,7 @@
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
-#define SERIAL_USB_BUFFERS_SIZE             256
+#define SERIAL_USB_BUFFERS_SIZE             320
 #endif
 
 /**
diff --git a/firmware/config/stm32h7ems/mcuconf.h b/firmware/config/stm32h7ems/mcuconf.h
index 9176de5a2d..6e31cd8457 100644
--- a/firmware/config/stm32h7ems/mcuconf.h
+++ b/firmware/config/stm32h7ems/mcuconf.h
@@ -154,7 +154,7 @@
 #define STM32_SAI1SEL                       STM32_SAI1SEL_PLL1_Q_CK
 #define STM32_LPTIM1SEL                     STM32_LPTIM1SEL_PCLK1
 #define STM32_CECSEL                        STM32_CECSEL_LSE_CK
-#define STM32_USBSEL                        STM32_USBSEL_PLL1_Q_CK
+#define STM32_USBSEL                        STM32_USBSEL_HSI48_CK
 #define STM32_I2C123SEL                     STM32_I2C123SEL_PCLK1
 #define STM32_RNGSEL                        STM32_RNGSEL_HSI48_CK
 #define STM32_USART16SEL                    STM32_USART16SEL_PCLK2
diff --git a/firmware/hw_layer/ports/stm32/stm32h7/board.h b/firmware/hw_layer/ports/stm32/stm32h7/board.h
index 2d12547f9f..2c3f624639 100644
--- a/firmware/hw_layer/ports/stm32/stm32h7/board.h
+++ b/firmware/hw_layer/ports/stm32/stm32h7/board.h
@@ -36,6 +36,10 @@
 #define BOARD_ST_NUCLEO144_H743ZI
 #define BOARD_NAME                  "STMicroelectronics STM32 Nucleo144-H743ZI"
 
+#define EFI_USB_AF 10U
+#define EFI_USB_SERIAL_DM GPIOA_11
+#define EFI_USB_SERIAL_DP GPIOA_12
+
 /*
  * input-floating is the default pin mode. input-output boards should provision appropriate pull-ups/pull-downs.
  */
diff --git a/firmware/hw_layer/ports/stm32/stm32h7/device_mpu_util.h b/firmware/hw_layer/ports/stm32/stm32h7/device_mpu_util.h
index 7463b16bca..8b13f13bf9 100644
--- a/firmware/hw_layer/ports/stm32/stm32h7/device_mpu_util.h
+++ b/firmware/hw_layer/ports/stm32/stm32h7/device_mpu_util.h
@@ -9,5 +9,6 @@
 
 #include "stm32h7xx_hal_flash_ex.h"
 
+#define MCU_SERIAL_NUMBER_LOCATION (uint8_t*)(0x1FF1E800)
 
 // todo SPI! #2284