Hello everyone,
I have a faulty Switch I’m unable to fix.
I don’t have its history as I bought it online. It wasn’t able to power on and already made some repairs:
I changed the battery connector as it was way too loose but still no power.
After investigation, the LCD connector was damaged and killed the BQ8316 (the +5/-5V were missing).
I changed both but still no boot.
Soldered a PicoFly on it and when Hekate starts I have a backlight but no image.
I swapped the LCD with a known-working one and still have the same issue.
I don’t see any physical damage to the traces between APU and LCD connector.
Pressing the LCD connector and the APU during boot don’t help.
As the backlight works a bit after the PicoFly turns green, I would say the APU and RAM chips are okay.
As there’s no reaction without the PicoFly I’d say there’s something wrong about the eMMC (dead? Wrong one?)
Assuming the +5V/-5V are present, APU seems to boot, all first-stage boot power rails are present, what could prevent the image to be displayed?
Any help would be appreciated here 