I upgraded my 4S to the GM of iOS7 about a week ago. Then last night it stopped charging when plugged into the wall or a computer. It doesn't recognize any activity with the USB. I thought it was maybe a hardware issue, but several usb cords, AC adapters and usb ports later, none of that seems to be the issue. It charges, but only when the phone is powered down. Other than that, it seems to work perfectly. I have done hard reset, restart in DFU mode, and erased and started like a new phone. No luck for any of it and now I don't even have my old stuff because my backup is on iTunes instead of iCloud, which won't connect. Any ideas? I'm feeling desperate here!