My dad has a Samsung phone. He dropped it once long ago and there was a crack across the screen as shown in the image:
Now he is having difficulty using the phone. There is always a touch at one spot automatically, which is very annoying. To show you what I mean, I have enabled "Show touch" in "Developer Options".
I have uploaded a video on youtube here showing how annoying it is.
Here are images showing the unwanted touch:
So how bad is the screen damaged? Do I need to replace the whole screen, as the guy at the repair shop said?