I purchased my Sony Z3 a week ago and it has been working great until lunchtime today. I was wondering why I hadn't received any responses from my earlier texts and went to look at my phone and it was off. I pushed and held the power button forever, nothing. I placed on the charger to see if it would light up or make some sort of sound, nothing. I do not have a removeable battery to take out and put back to see if it would come on, so I'm at a loss on what to do now other than take it back to the store. Anyone else have this problem or have a suggestion?