Aporte original por: Carlos Ramirez ,
Even if the screen doesn't seem to be damaged, it could be. I had that happen on a Note 4 of a friend. She dropped it many times until one day, she went to use it and half of the screen would no longer recognize touch but the other half would. The stylus would work. But there was no visible damage to be seem. A new screen was installed and that fixed the problem. I believe the screen could be damaged in this situation even though it doesn't seem like it. It is worth a shot to getting a screen and seeing if that fixes it.