adding to this issue, this belong to small chip on board and can be fixed by replacing board where the LCD jack intact, if you remove the back cover 1st and the 6 screws you can find a large jack on left, then remove LCD jack, this turn your upper half paralyzed only, but this will turn your remaining all issued killed. rest all the featured remain active, no extra heating, drain battery i.e. auto rotate that will provide you easy, specially Knock Knock access on both On/off activated