Chosen Solution

After I replaced my broken screen, everything looked good! but for some reason a certain vertical line won’t work (there is no white line, just unresponsive section), I can’t type the letters u,j,b,n, the problem goes from the top to the bottom. Resetting, locking and unlocking fix the problems temporarily, so I guess this is a software problem, can anybody help me with this? Please.

Clean out the digitizer connector with alcohol, then reseat it. If that doesn’t work, its a bad screen.