iPhone won't turn on - won't restore, even DFU mode.
Hey guys, I have a bit of an unusual (to me) issue here. I'll start from the beginning.
I do minor iPhone repairs on the side, and a customer brought me an iPhone 4 that supposedly wouldn't charge, and wouldn't turn on. My first thought was the charging port, but once I got the phone and started testing around, I noticed that the battery connection on the logic board had come un-soldered. I don't have the tools to make this kind of repair, so I had it quoted by a local phone shop but my customer didn't want to pay that much with the uncertainty that it would fix the issue. Long story story short, I bought the phone from him (for parts, if nothing else) and now I'm trying to get it working.
I did have the local shop repair the battery connection, but when I picked it back up they informed me that it was stuck in recovery mode.
Playing with it at home, I'm finding that this is a strange type of recovery mode... With one exception, I can't get any response out of the phone at all. The power button does not trigger the "connect to iTunes" screen, never attempts to power on or anything... however (the exception), when I plug it into iTunes, it detects a phone in recovery mode and gives the option to restore it, at which point the apple logo comes on the screen, and the loading bar appears beneath it but never begins filling up. iTunes stays stuck on "waiting for iPhone" but never seems to get anywhere. I left it like this overnight and found no change this morning.
Does anyone have any thoughts as to what I can do to get this phone working? If nothing else, I'll just throw another logic board in it but I would like to think that this one could be salvageable.
Is this a good question?