My Jetson Xavier does not even boot to show Nvidia logo

My Jetson Xavier does not even boot to show Nvidia logo. It was working fine a few months ago but now when I connect it to a HDMI monitor, I do not see anything. Its a complete black screen. How can I recover it?
I have tried to put it into force recovery mode and all that but still no success.
Please help.

The first thing to do is to post a serial console boot log. The USB connector to the left of the 40-pin header can be used for that, along with a serial console program running on a host PC. For a Linux PC I tend to use gtkterm, others use minicom. Sometimes PuTTY is used. The setting for this is 115200 8N1.

Without that, the usual next step would simply be to flash it again. Note that it is rather important to know if this is a developer’s kit, or if it uses a third party carrier board.

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