diff --git a/boards/px4/fmu-v6x/extras/px4_fmu-v6x_bootloader.bin b/boards/px4/fmu-v6x/extras/px4_fmu-v6x_bootloader.bin
index 387ae5cbe0..aaf49eb143 100755
Binary files a/boards/px4/fmu-v6x/extras/px4_fmu-v6x_bootloader.bin and b/boards/px4/fmu-v6x/extras/px4_fmu-v6x_bootloader.bin differ
diff --git a/boards/px4/fmu-v6x/nuttx-config/bootloader/defconfig b/boards/px4/fmu-v6x/nuttx-config/bootloader/defconfig
index 98401d82f4..40e04d9178 100644
--- a/boards/px4/fmu-v6x/nuttx-config/bootloader/defconfig
+++ b/boards/px4/fmu-v6x/nuttx-config/bootloader/defconfig
@@ -72,19 +72,22 @@ CONFIG_START_MONTH=11
 CONFIG_STDIO_BUFFER_SIZE=32
 CONFIG_STM32H7_BKPSRAM=y
 CONFIG_STM32H7_DMA1=y
+CONFIG_STM32H7_DMA2=y
 CONFIG_STM32H7_OTGFS=y
 CONFIG_STM32H7_PROGMEM=y
 CONFIG_STM32H7_SERIAL_DISABLE_REORDERING=y
 CONFIG_STM32H7_TIM1=y
-CONFIG_STM32H7_USART3=y
+CONFIG_STM32H7_UART7=y
 CONFIG_SYSTEMTICK_HOOK=y
 CONFIG_SYSTEM_CDCACM=y
 CONFIG_TASK_NAME_SIZE=24
 CONFIG_TTY_SIGINT=y
 CONFIG_TTY_SIGINT_CHAR=0x03
 CONFIG_TTY_SIGTSTP=y
-CONFIG_USART3_RXBUFSIZE=600
-CONFIG_USART3_TXBUFSIZE=300
+CONFIG_UART7_RXBUFSIZE=512
+CONFIG_UART7_RXDMA=y
+CONFIG_UART7_TXBUFSIZE=512
+CONFIG_UART7_TXDMA=y
 CONFIG_USBDEV=y
 CONFIG_USBDEV_BUSPOWERED=y
 CONFIG_USBDEV_MAXPOWER=500
diff --git a/platforms/nuttx/NuttX/nuttx b/platforms/nuttx/NuttX/nuttx
index 017aa15746..5733f34f49 160000
--- a/platforms/nuttx/NuttX/nuttx
+++ b/platforms/nuttx/NuttX/nuttx
@@ -1 +1 @@
-Subproject commit 017aa15746bcf6b57bb185e14dce7fa0876fc751
+Subproject commit 5733f34f4984db7c6a1276b91dee56111b59aba1