Hallo every one,
My keyboard on the Jetson Nano is not working normally.
I mean commands like (/ - _) changed, not more like they on windows anymore, is that normal?

That does not sound normal, but we don’t know enough to answer what is really going on. Assuming this is USB, does unplug and replug help? Can you see if there is any relevant output on “dmesg”? You could post the “dmesg” output after you’ve unplugged an replugged the mouse (I’m assuming you can still use a command like this: “dmesg | tee log_dmesg.txt”).

If you are unable to correctly type this in, then perhaps you can via ssh or serial console.