vivobook t412f - powerup, fan spinning but black screen/no backlight
This laptop stopped working suddenly according to the owner, the only thing it does is to power up and running the fan out loud.
There's no other activity: no backlight, no hdmi, no bip, no network activity or whatever....
I exhausted my options: changed the RAM (beside the soldered one of course), nvme,
I used a RT809F to reprogram the BIOS with different ROMs (correctly trimmed), no luck.
Of course, there's no schematic for these consumers crap.
Any help, please?
Is this a good question?