Anyone else have this issue?I have had my iphone 5 since January, now all of a sudden my power button hardly works, and if it does I have to press it really hard. I would say 1 out of 10 times pressing it will it work. Never dropped it and no water damage at all, fully protected with a defender case, I'm not happy!!!! My old iPhone 3GS, never had any issues and it still works!!!!