my experiences 3 times cube black was burned. first time, I did rewrite bootloader to the carrier board firmware, it was worked. recently my 2 others cube black was burned again. tried to rewrite bootloader to carrier board again, but it does not work.
finally, I found it is cube problem.
but it works for official rover 4.0.0, does not work for my firmware on this burned cube black.
my firmware is OK, can be run another cube black and other brand hardware.
I use Mauch power modul.
my question is,
- what is the reason, how to fix it. the reason may be I turn on/off to frequency.
- how to avoid this happen again, because I can’t guarantee enduser frequently turn on/off machine