Damn, that sucks. I hear the hissing a little on mine. Not bothering me though. However, if it starts giving me battery problems or overheating I may not have a choice, but to do the same.I contacted Apple about my wife's 7 getting hot and battery dying within 2 hours. They told me since the device is not 14 days old you'd have to go to T-Movile for the exchange. Called T-Mo they said because they have no stock of phones the best thing to do is send it back for a refund and re order.