hello liliasojd,
the command-line, -k kernel-dtb has already point to the correct partitions.
the mmcblk0p1 is actually for the rootdev recognition, it skips flashing rootfs since -k options has included,
so,
below shows the correct command to perform device tree blob partition update.
i.e. $ sudo ./flash.sh -r -k kernel-dtb jetson-xavier-nx-devkit mmcblk0p1
as I said.
device tree blob will load from file system instead of kernel partition if you’re having FDT entry in the configure file,
it’s CBoot functionality includes a default booting scan sequence, please check CBoot session for more details.
thanks