Chosen Solution
I just replaced a screen on an IPhone 6 Plus. I always test everything before I close up the phone and all was working. Once I had put the covers and screws back in and closed the screen the left side of the screen does not register touch. We can’t go back, the q and a do not work and I can’t get to the numbers and smileys etc. when I open the phone back up (just pop the screen up and let it rest) the left starts working again. What in the world????
I suggest you try another screen