No dtb found on Jetson Nano

I am having problems with the GPIO configuration on my Jetson Nano.
’jetson-io.py’ runs for a millisecond but then closes immediately.

$ cat /sys/firmware/devicetree/base/compatible

$ fdtget /boot/dtb/*.dtb / compatible

returns a normal result, but

$ sudo /opt/nvidia/jetson-io/config-by-pin.py

displays the error message:
RuntimeError: No DTB found for NVIDIA Jetson Nano Developer Kit!

$ ls -l /boot/dtb

is showing:

total 240

-rw-r–r– 1 root root … 0005-nv.dtb

I know there are already some solutions online, but non seems to be working.

Hi abbccc,

Are you using the devkit or custom board for Jetson Nano?
What’s the Jetpack version in use?

Please check if Jetson-io.py crash solution - Jetson & Embedded Systems / Jetson Orin NX - NVIDIA Developer Forums can help for your case.

Are you sure you are using “Jetson Nano” but not “Jetson Orin Nano”?

Generally we won’t see a dtb with " 0005-nv.dtb" name for a Jetson Nano… it is more like a Orin Nano file..