Jetson nano no longer works

Hi, my Jetson nano was working fine until now. I decided to power the jetson nano using the GPIO pins from an OpenCR1.0 card, but it stopped working! When I tried to power it again via the µUSB cable, it did not respond, and the LED turns on for one or two seconds and turns off!
Could you please help me out?
Thank you.

hello mein.jmail.mein,

could you please share logs for reference,
you may also refer to Jetson Nano serial console for setup an environment to gather logs.

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Hi JerryChang,

Thank you for your reply.
I don’t know how to get the logs since I don’t have the same model as the one used in the video you posted!
This is my Jetson Nano:

The Jetson nano does not boot at all, only the LED turns on quickly and directly turns off.
I searched for similar problems in the forum and I found that maybe it could be a short circuit, what do you think?

Thank you for your help.

hello mein.jmail.mein,

you may use 40-pin header, and setup the serial port for communication. the default baudrate is using 115200/8n1.