Nvidia Jetson Nano 2GB Green light is turn on but not displaying and not working

My nvidia jetson nano 2GB is connected to a 5V 3A power supply but the CPU is not working. This may be due to the MAX77620A PMU.

Everything is circled in this picture.

Hi, so what is your question here? How long have you used this? How did the issue happen? If it is a module issue you can run RMA for it: https://developer.nvidia.com/embedded/faq#rma-process

What is your method to tell “cpu is not working”?

Thank you!
Could it be because of the MAX77620A PMU?
Can I get this fixed by sending it to Nvidia?

I bought this in December 2020, I used it for 1 year, that is, I made an IA car bot. I don’t know why it broke. I checked with the tester to fix it, but I couldn’t solve the problem.

Sorry, no signal. I guessed that the CPU or MCU was failing. I don’t know what to say CPU or MCU I can say SoC.

You mean you directly check the hardware signal? Or you are talking about something else?

Yes, I check the hardware signals directly. Only voltage tester.