Have you ever seen anything like that? Please see video:
One day I noticed I have problem choosing some items from menus if they are located at certain height from the top of the screen. I needed to scroll the menu down or up to choose those items. I never had that problem before. Then I thought of trying some drawing app, and voila. There is a stripe of screen that does not work. What do you think of that? Can I do anything about it?
I may add that nothing ever happened to the phone, like falling from some height or getting into water.