After repair, won't charge or connect, proximity sensor also busted.
Brief description. After disassembling (iPhone 3G black 16GB):
- Proximity sensor is busted.
- Ear speaker won't work.
- iPhone won't display battery is charging.
- iTunes will not detect anything.
- If plugged to the computer/wall while off, will turn on.
- The phone actually charges if plugged, but extremely slowly (powered off it goes faster).
I had to replace the headphone jack + ribbon on my iPhone 3G. Therefore I needed to take most of it apart.
When I put it back together, the headphone jack worked great, but there was no audio on the ear speaker. I realised I busted my proximity sensor once I made a test call, put the phone next to my face and the display didn't go black (plus the ear speaker didn't work, had to talk on the speaker or headphones).
In addition, I noticed nothing happened when I plugged it in the computer. The battery won't charge and the iTunes won't detect a thing. If I plug it in while it's off (computer/wall), it will turn on.
I'm buying a replacement proximity sensor with ribbon cable to fix that bit, but I have no idea what to do with the battery issue. Everything seems intact in the logic board, I've checked for the SMD thing as described No USB Connection after I broke little SMD element near connector #4!.
I've fixed the description of the problem to include my new findings.
UPDATE #2 02/July/2011
I have replaced the proximity sensor and the dock connector to no avail. Same problems, which makes me believe it is something related to the logic board. I took the phone to Apple, but they refused to take it in for service because the phone has been opened. Any new ideas?
Is this a good question?