
Originally Posted by
MajorC4
Hey dallasprep, I'm getting the same problem mate!
I installed a some new USB ports in my PC. (not a new adapter, just connected an adapter to a spare socket on the motherboard). My iPhone was sat charging and syncing and playing quite happily in its dock, then I plugged the USB cable into the new socket and nothing happened. I figured that there was something wrong with the adapter, so I plugged it into the original socket, and it refused to charge or register at all on the PC! =/
So, I got out my AC adapter and tried that, nothing. I tried a spare mains adapter I have, nothing. I went and bought a new USB cable, nothing. I then went out in my car and plugged it in, and it both charges and plays music over the stereo, meaning that the charging and data transfer controllers on the logic board MUST be intact for it to work!
I have read reports that a Firewire (IEEE 1394) cable will charge the phone from your PC, but it will not sync (so its only a temporary solution).
I searched around, and I was being quoted like £150 ($300) for a replacement logic board, but it really doesn't make sense. The phone itself works absolutely perfectly, just like before! All I can see is that my car is providing 12v of DC power. The adapter is trying to provide 240v of DC power, and failing, and the USB is trying to provide 5v of AC power and failing, but if the reports about IEEE1394 are correct, then they provide 8-30v of power, settling on 12v for most devices. I have absolutely no idea what this equates to, but it is something that MAY be relevant.
As usual, being unlocked and jailbroken no one wants to know about it, except private repair shops, who will happily charge you the cost of a new phone just to repair it!
If you find a solution, PLEASE post it on here! =)
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