How to flash special partition when change cfg file

when I change the Pinmux and GPIO Configuration file Linux_for_Tegra/bootloader/t186ref/BCT/tegra19x-mb1-pinmux-p2888-0000-a04-p2822-0000-b01.cfg.I try “sudo ./flash jetson-xavier mmcblk0p1” to flash all the partition,and it works.How to flash special partition to make this change work.

Hi,

There is no method to flash specific partition when it is for BCT. Need to do the full flash.

but I think some partition like system.img has nothink to do with the BCT,Does it need to be flash?

Yes, they are not related but unfortunately there is no method to flash BCT only.

Alternatively, there is method to update the whole bootloader on device with bl_update_payload.

https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide%2Fbootloader_update.html%23

1 Like

hello Username1,

that’s Boot Configuration Table update, you must have perform flash commands to flash your board completely.
please also check similar discussion thread, Topic 109837 for reference.
thanks

Thanks for you answer,but it is work when I use the bl_update_payload to update the system.