Hello, A few months ago I was away from home without my charger and the only way I had to charge my phone was with a non-Apple charger. I kept getting a "device not supported" message but the phone would still charge. When I returned home my iPhone 4 would only charge up from my Mac and will no longer charge from a wall socket. The iPhone has been charged or used for most of the summer. The problem persists and I have tried a full restore "as a new phone", but it still will not charge. The Apple USB cable and charger are new. Can anyone help? Cheers.