This problem isn't specific to one operating system. All phones, from budget Android phones to iPhones, can have issues with black-and-white displays. The cause of a black-and-white screen is simple.

If you see Black and White squares on your computer screen, the problem may be with your display, GPU driver, or GPU. Use these fixes to resolve the issue.

Do you have vertical or horizontal lines on your phone screen? Learn what the issue is on Android and iPhones, and how you can fix it.