I have a problem with my Zenpad. So, the first thing happened when I tried to unlock the screen, the screen went black. If I pressed the power button, it would show me the unlock screen again, and when I swiped my finger to unlock it, the screen went yet again, black. So, I tried a hard reset using the volume up+power buttons, wiped all data, and now, just when it boots up(after the asus welcome logo), the screen goes black. Any ideas on how I can fix this?