won't boot after replacing power button
Hi
I have replaced 2 power buttons on 2 iphone 4s' and both times when I tried to turn them on after that the phone showed the apple screen then what looks like a DOS prompt giving an error message. I have no idea what I can do about this. I even had to buy someone a new phone! please help! I do repairs all the time so I'm no rooky but this has me stumped.
Questa è una buona domanda?