Original post by: Deano ,
I have found it near impossible to actually kill an iPhone. But then again I also believe that nothing is impossible. A sort of contradiction there. Try removing the Mainboard from the phone and leaving it out for a couple of hours, the longer the better. If possible at least 24 hours. A full discharge of the whole phone will usually solve most annoying and strange problems such as yours. I recently had a similar issue but kept the restore process going till even itunes wouldn't even acknowledge the phone as being connected. I removed the board and put it aside. After 48 hours I got around to having another go at it, once I put the board back in I got life. I did not even have to restore it, as it worked like nothing had happened. I always do similar thing with any household appliance including my P.C. when they play DUMB. Pull the plug from the wall, let it sit for a minute or two to let all electrons to dissipate from the Capacitors and then plug back in. Strange as it may sound but at least 9 times out of 10 it works like new. The discrepancy of 1 is when you let the smoke out (Fried). Good luck. I have yet to brick an iPhone or even see one. Except for terminal death by car and intentional damage of the Logic Board, snapped in two.