Original post by: Mike ,
I've had this problem on 3 new aftermarket screens RECENTLY - from different sources. The problem is with touch connector flex. In all 3 cases it's not snapping / clicking on to the board like it should. It also depends on the condition of the FPC connector on the board too. If its perfect / like new you might get away with using these screens. If there are any slightly bent pins the chances of using these screens without any touch issues isn't good.