Apple iPhone DFU mode ( Deep Firmware Upgrade)
1. Turn off iPhone.
2. Connect to mac/pc with sync cable / iTunes.
3. Press and hold HOME and POWER buttons for 10sec.
4. Release only POWER button, but continue pressing HOME button for 10 sec.
Now iTunes should detect iPhone in recovery mode.
Don't know if this will help, but my iPhone jsut wouldn't turn on for like 6 months. One day I just said fuck it I'll try one last thing, tried this, and it worked perfectly turned my iPhone on and everything. I had it jailbroken and had reset it, so it wouldn't turn back on. DFU mode fixed it all. Hope it helps, and if it doesn't, I'm sorry D: lol
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