iPhone 4S touch screen not functioning shortly after screen replacement
Client submitted a smashed iPhone 4S for screen/back repair, nothing unusual, we do about a dozen a week here.
Front and back are replaced, along with a broken vibrator, on startup all is well, all functions are good; phone is bagged and prepped for client pickup.
Client returns 5 minutes after picking it up, touch screen doesn't work.
* Tried home/power reset combo, no success.
* Tried home/up/power reset combo, no success.
* I thought perhaps it was the connector having popped off or not seated 100% right, but that wasn't the case. Tried two additional screens and no success. Tried just the main logic board + battery + screen + docking connector ( so you can turn it on without a power button ;-) ), no success..
* Tried iOS update (was on 5.1.1) to 6.0.1, no success.
* Tried DFU + restore, no success.
The phone appears to be 'fine' otherwise, data is intact, power button is fine, mute/volume switch is fine, home button is fine.
Not sure what to go with next other than submitting it to an Australian Apple Service Centre to have the logic board replaced or....? Any suggestions?
iPhone 4S, iOS 6.0.1