same thing happen to me I sent the phone to HTC and they sent it back and said they did not have the parts for power switch cost me 56 bucks to ship with insurance , a rp rep called me a month later and said you are just out of luck you have to buy a new phone and they were done ,i got a micro switch and installed it on the board "wrong switch" but the phone works great not I don"t have a button that makes it look pretty on top now but better than HTC answer . Good luck to anyone who has a HTC one S V the power switch is not very good design and it falls apart easy in 1 week my new universal micro switch is stout and is working great ....