I did this:
sudo mkdir /boot/dtb
sudo cp -v /boot/tegra210-p3448-0000-p3449-0000-[ab]0[02].dtb /boot/dtb/
After that I just rebooted and then /opt/nvidia/jetson-io/Jetson/board.py
command worked.
I did this:
sudo mkdir /boot/dtb
sudo cp -v /boot/tegra210-p3448-0000-p3449-0000-[ab]0[02].dtb /boot/dtb/
After that I just rebooted and then /opt/nvidia/jetson-io/Jetson/board.py
command worked.