This console's owner tried to solder and flash his nand backup,
but he ended up destroying the battery connection part
(yes, he tried to fix it himself, and it was not a good idea)
now the console doesn't boot when not connected to a charger
and when connected, the black screen of death appears and the LED flashes about 3 seconds before the console shuts down.
He asked if I could fix it.
I told him I'm just an amateur and this is beyond my skills, so move on and buy a new one
I wonder if there's any way to fix it without changing the motherboard. What do you think?