Hi I bought this faulty phone ... HTC sensation.. I'm looking behind the battery and the water sensor sticker is gone.. It's still under warranty but I don't want to send it in for repair and it turns out to be water damaged .. Their prices kill :'(. Even if I don't want to fix it theyll ccharge 35$ just for diagnosis .. So I'm just wondering if someone knows how to check if it's water damaged without the sticker behind the battery.. I just want to make sure it isn't before I send it in.. Any help is much appreciated! Thanks!