You should try returning one
On the phone yesterday for two hours (takes an hour of holding on to get thru) trying to get google to send me a replacement as mine is fucked up - the speaker buzzes to the extend you can't hear anything else and the screen is lifting on the left hand side.
They are the worst company EVER to deal with. Send you a replacement straight away? Fuck no. Has to be passed to some other team and I have still heard nothing. What a bunch of idiots. Total fail.