Chosen Solution

Hi, I have this Iphone 8 plus that is having some problems with the touch screen You can see it here https://www.youtube.com/watch?v=619qQLce… It doesn´t happen all the time.. Sometimes it works perfectly, sometimes it doesn´t What would the problem be? Would it be a software o hardware problem? Thanks

The screen is not calibrated. Without Apple’s calibration machine, you can only keep swapping screens until you find a matching one.