You know the beep sound the iphone makes when you plug it in to charge it? Well now its doing it while its plug in. What I mean is the phone will be sitting there and charging and all of a sudden I will here that beep. It does it when its plugged into my computer and in the wall adapter. Ive done everything to try to fix it, except buy a new usb cable. Could that be the problem or is it a problem with my phone. Im on 1.1.1. My phones locked and jailbroken. If anyone has any info I would appreciate it.