Earlier today while using the youtube app on my Xperia play the phone suddenly froze and turned off. At first I thought the battery had come loose (which it has done on occasion) because the phone wouldn't turn back on. However, after taking out the battery and putting it back in I still couldn't get the phone working again. The battery was not low enough for it to run out and I've even tried plugging in the charger but I still get nothing. (Not even the lights turn on) Another thing I've tried is removing the battery and trying to power it with nothing but the cable but even that gives me no response. Not even the lights turn on. It's completely dead! Can anyone help me out?