Update only device tree in nano production modules

HI,

How do we update only the device tree in nano production modules ? At present we are copying it to Linux_for_Tegra/kernel/dtb and issue sudo ./flash.sh jetson-nano-emmc mmcblk0p1. But this updates the whole system and takes a long time. And every time we do this, we have to again set up a user account etc…
We were able to update only the device tree in other Jetson platforms Xavier and TX2.

Thanks,
Don.

Hi,

You could try to flash the DTB partition directly. Run flash.sh with -k DTB.

Hello @WayneWWW,
do you mean sudo ./flash.sh -k DTB jetson-nano-emmc mmcblk0p1 ?

Thanks,
Don.

Yes, also add “-r” to get the flash process faster.
sudo ./flash.sh -r -k DTB jetson-nano-emmc mmcblk0p1

Thanks @WayneWWW. That does the trick.