Hi, I have a jailbroken iPhone 3G which is stuck on a reboot loop. It keeps showing the Apple logo for a long time, then shuts down and repeats this. 1. It doesn't react to any input. Pressing and holding the power, home or volume button achieves nothing. 2. The only way to get it to do anything it to plug it into the charger. 3. It doesn't show up in iTunes. 4. I can't put it in DFU mode. Does anyone have any ideas? Why doesn't it react to my input?