How to update device tree in nvme

Our nx product needs to update the device tree,The system is installed on an external nvme.
I installed it with the following command:

sudo ./tools/kernel_flash/ --external-device nvme0n1p1 -c ./tools/kernel_flash/flash_l4t_nvme.xml -S 220GiB --showlogs jetson-xavier-nx-devkit-emmc nvme0n1p1 

Now, I need to update the device tree individually,I installed it with the following command:

sudo ./tools/kernel_flash/ -k kernel-dtb --flash-only -c ./tools/kernel_flash/flash_l4t_nvme.xml -S 220GiB --showlogs jetson-xavier-nx-devkit-emmc nvme0n1p1

The result shows success:

But the device tree didn’t work.If I flash the whole system again, the device tree works.
How should i solve it.The L4T is 32.6.1.

Just use dd command to update the partition on nvme. We don’t have special tool for it.

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