I have been running a B01 emmc module in our carrier board for some time now and it worked good.
Last time I powered it down with “sudo poweroff” and unplugged the power. 5 minutes later upon re-plugging the power back Jetson nano refuses to start - the SYS_RESET is not raised by the module.
Nothing was connected to the board during those 5 minutes, nothing touched it physically.
The 5V rail on the carrier is OK, so the module is powered.
I tested other modules with this carrier, they all boot normally.
I tried the faulty module in other boards - it doesn’t work.
So it’s really the module that is faulty.
Could you suggest any possible reason? I really hope that it did not get damaged by the carrier board since that would question the whole custom board design, which has been working flawlessly for several months now…
I would be grateful for any hints!