OK, so I replaced the broken screen on a friend's 4S - all went smoothly, nothing broke. Turned it on afterward and it wouldn't see cell signal (AT&T model). Checked everything, nothing was broken/disconnected, including the capacitor every site said to check. A few sites I found suggested restoring to "cure" the problem, so I did - downloaded the newest iOS (she was still on 5) and restored. Now it won't restore AT ALL. Runs through everything fine, gets to the "restoring firmware" part of the process, then reboots. iTunes returns a -1 error (hardware), but everything was working fine pre-replacement, except the broken glass, of course.
A few thoughts I had:
1) She dropped it from chest height onto a tile floor with no case - it was a badly damaged screen. Could she possible have broken something loose on the logic board that doesn't appear broken with the naked eye, and that "lost connection" after being disassembled? (probably not)
2) Did I fry something (static) while I had it apart?
3) Maybe the antenna is broken/I damaged the connector? (it appears fine)
When it was working, it wouldn't even recognize whether a SIM was in or out - just stuck on "Searching..." Good news is she's eligible for upgrade; bad news is I think I broke it.
Any suggestions at all? Thanks.
A few thoughts I had:
1) She dropped it from chest height onto a tile floor with no case - it was a badly damaged screen. Could she possible have broken something loose on the logic board that doesn't appear broken with the naked eye, and that "lost connection" after being disassembled? (probably not)
2) Did I fry something (static) while I had it apart?
3) Maybe the antenna is broken/I damaged the connector? (it appears fine)
When it was working, it wouldn't even recognize whether a SIM was in or out - just stuck on "Searching..." Good news is she's eligible for upgrade; bad news is I think I broke it.
Any suggestions at all? Thanks.