I docked my Wii U Gamepad today and it was doing this: The quality of the video isn't the greatest, so I'll describe it. The charging LED is flashing approximately twice per second. With every flash of the charging LED, the screen seems to pulse brighter. I removed the charging cable from the dock and connected it directly to the Gamepad and it continued to do the same thing. If I remove the charging cable, the Gamepad returns to normal. If I turn the console off and connect the charging cable, the charging LED comes on and remains steady. Does anyone have any ideas what might be causing this? Thanks in advance!