Jetson Nano doesn't boot anymore after ubuntu upgrade

Hello everybody,

Unfortunately yesterday I had to leave my jetson nano all alone in my studio during upgrade (sudo apt-get upgrade). When I came back after some hours the board was off and now the jetson doesn’t boot anymore.

It goes through the first two nvidia logo screens and then no more hdmi signal is detected by the monitor.

Trying to reboot the jetson repeatedly it sometimes goes to this screen:

I would be grateful to anyone who can help!

Thank you so much,


There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.


  1. Please dump the log from serial console and attach it here. It is better to read a text log from file than monitor.
  2. Have you tried to reflash your board?