Hey guys, I just got a 7230 off ebay, and I dont have the home charger, but I do have the USB cable. This guy says that the USB cable will charge the phone (which I beleive is correct,) but whenever I have it plugged into the USB port, the phone works, but as soon as I disconnect it, it says 0% battery. It doesnt have a SIM card yet (if that matters,) but i think it's slowly charging. Also, how do I do a hard reset?

hard reset is to take the battery out and hold power button 1 minute then replace battery

That diddnt seem to do anything, I just want to get all this guys junk off of here.