It will be green in color when rotation is turned on, gray when turned off. Note: If you do not see “Auto rotate”, you may have to scroll left or select “Edit” (pencil icon) while the notification bar is open. Option 2 – Settings. From the Home screen, select “Apps” and select “Settings“. Select “Display and wallpaper“.
Another common hardware malfunction that may lead to the flickering screen is a pinched cable responsible for displaying the image. You can make sure that the cable is not pinched if you disassemble your computer and visually evaluate the wire for damage and inspect its location.