The setup started but at the end it stopped and does not start again

Hi.

I performed almost all setup process (keyboard, time zone, language, username, password). After password setup, the screen is black and I cannot boot it again: it shows Nvidia logo and black screen, with no activity. I tried to burn the SD card again, but nothing changes, the Nvidia Logo appears for some seconds and black screen.
I started using 5V-5A power supply (with jumper) and changed to a 5V-2.5A but nothing changes.
Any issue to this problem? Change SD Card? Power Supply?

Thanks a lot.

It isn’t unusual for video configuration failures to be mistaken for a failure to boot. Can you ping the Jetson? Or maybe see a console from CTRL-ALT-F3? Serial console is the best method to find out what is going on. For that see:
https://www.jetsonhacks.com/2019/04/19/jetson-nano-serial-console/