I've had this iphone 4 since August (bought it off ebay, then unlocked for t-mobile and have been using it without any issues)
2 days ago, my wife told me that she had plugged the phone in the charger overnight, but it still kept showing the charging screen (red battery bar with the 'Z' sign)
So far I have tried the following
- 4 different computers
- 2 different wall outlets
- 4 different cables
- tried a soft reboot about 10 times
- tried to put phone in DFU mode and restore it. The phone goes through the restoring process in itunes, but in the middle of it, it stopped at gave an error 'The iphone "iphone" could not be resored. An unknown error occured (1004)'
Since i bought this phone off eBay, and because it is unlocked and jailbroken, i don't think i qualify for warranty since i can't restore it to factory standard..