Chosen Solution
My brother just got a new phone so I get his old broken phone to try to fix it. The back glass was broken and he dropped it into water and quickly got it back out. A little bit later the faceID stopped working and the next day the touch screen didn’t work. Eventually, he took it to a repair shop and they couldn’t get the phone to turn on. I played around with it and got it to turn on though. The touchscreen still didn’t work so I looked inside again and saw the LCIs were red. So, I gave it the alcohol treatment by taking out the logic board and soaking it in alcohol. The screen still doesn’t respond to touch but it does seem to be in good condition. Not sure why this is happening and I don’t know what to do next.
Hi Dimitri, Although I don’t disagree with @hellomacos that there could be a fault on the logic board, it’s also entirely possible that the screen itself got water damage and the digitizer isn’t functioning. I don’t know how to tell which one is at fault, the logic board or the digitizer, but at least the screen is something you could replace yourself. For the purposes of diagnosis you could buy a cheap LCD version of the screen to find out if that fixes the problem; at least you wouldn’t be out for the full cost of a whole new OLED screen if it doesn’t work; of course, if it does then you’d want to go ahead and get a decent replacement screen.
Hi Its sounds like there is a fault on the logic board due to the water damage if you aren’t comfortable doing micro soldering I would recommend taking it to a repair shop the specialises on microsoldering repairs Hopefully this helps Any questions please ask Thanks:-)
