A number of iPhone 11 users complained of a strange green on the screen after downloading the latest iOS 13.5.1 update.

Most cases indicate that the screen turns green after opening the device or when dark and night mode are activated.

Some users note that the dye disappears after a while, but returns unexpectedly.

The problem appears to be affecting iPhone 11, 11 Pro and 11 Pro Max devices, and it may be a software issue that can be fixed when Apple releases iOS 13.5.2.

It appears that the common denominator is OLED displays.

"Forbes" indicates that the problem may be a combination of software and hardware problems with faulty OLED screens affected by a change in recent iOS updates.

The Apple iOS update has been experiencing problems since it was released last year, according to the British "Daily Mail" website.