Last night my jailbroken iphone battery died and I went to charge it overnight as usual and when I woke up this morning it wasn't working. I've never had this problem and I am running a normal jailbreak on a 3GS with pwnage tool. It's untethered. The only thing I get when I plug it into the wall or the computer is a battery meter with a lightning bolt. When I unplug it I get a plug symbol with a lightning bolt. Please help. Thanks!