I just ordered a new CMOS battery since mine was only showing 2.48v. (ML1220 coin cell in case anyone else wants to order in advance)
Replacement only shows 2.70v but they are rechargeable so maybe that's not that bad? It says nominal voltage should be 3.6v...
Anyway, buttoned it back up with the new battery and same issue.
* Still black screen.
* insert usb with 'FLASHIT.exe' and 'ZG5IA32.fd' (formatted to 'FAT')
* Hold 'FN + ESC'
* power button flashes
* and keeps flashing forever...
* I've tried multiple flash drives and all 3 USB ports.