The lower half of my screen is dim while the top half remains bright. And sometimes it goes back to normal. Here i attach two images so you can see how it looks like.
With dim lower half: https://ibb.co/d0rBxbc
Normal: https://ibb.co/yYJkMPW
With dim lower half: https://ibb.co/d0rBxbc
Normal: https://ibb.co/yYJkMPW