Hello!
On further the review, the simplest fix for the Jetson.IO tool when using the SD card is to do the following …
$ sudo mkdir /boot/dtb
$ sudo cp -v /boot/tegra210-p3448-0000-p3449-0000-[ab]0[012].dtb /boot/dtb/
Let me know if this works. I will ensure that this is fixed for future releases.
Regards,
Jon