After a drop: Display is funky, iPhone not showing up in iTunes
My sister dropped her 6S on the floor. It was turned on when she dropped it, but seemed to be turned off when she picked it up. She tried turning it back on and saw only weird colors, so she brought it to me and asked me to look into it. I used to fix iPhones for friends and family from the first iPhone to the 4S but have since gotten “out of the business”.
In this case, I’m unsure how to proceed. I figured it’s the screen, but I cannot get the phone to show up in iTunes. It does power on when I plug in the lightning cable. The home and power button are also working. I tried rebooting into DFU but that’s now working.
Based on the vibration and screen, it seems to be rebooting somewhat randomly as long as the battery is connected. I’ve opened it up and checked the cables and connectors and it all seems fine.
It might be the logic board, or it could be that both the screen and the dock connector took a beating. I’d like to avoid buying replacement parts that aren’t needed to get the phone working again but I don’t have a second (working) 6S to test parts with.
I’d be grateful for any suggestions on how to proceed with diagnosing what’s wrong with the phone so that I may figure out what steps are needed to fix it.