I had successfully done 5 minis with no issues the last one had ghost touch then the digitizer died i think I damaged the digitizer flex I used kapton tape over the copper contacts this should stop the screen jumping and ghost touch be very careful when bending the digitizer flex it so easily damaged take time to get it right. For sticking the digitizer back down the adhesive supplied is not man enough to keep screen down on its own so I used IPAD ADHESIVE TAPE DOUBLE SIDED REDTAPE SUPER STRONG STICKY comes in different width's Easily got on eBay I found 'this worked the best and so far had no issues with digitizer lifting since using this tape