Whenever I boot up the PS4 and select my user the controller just completely turns off. I press the home button and the light on the controller flashes a few times and then doesn't work. It worked for a couple of minutes when I tried to play Battlefield 4 but then it stopped working again. Its fully charged up and I don't have any idea how to fix this. I've even left the usb cable in the controller while turning on the console and still nothing.