Hi - want to be able to use the USB cord that was supplied with the phone in the car to charge it. To do this I have a gadget that plugs into the cigarette lighter in the car and presents a USB port. So I plug the fat end of the USB cable there and the thin end of the supplied USB cable into the phone. This does NOT charge the phone. I understand the cable is special, needs to support 3.1 etc - but what are the requirements of the thing that plugs into the cigarette lighter? Mine was providing 2.4 amps - but apparently it needs to do more...but what? thanks
Greg
Greg