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 your Windows computer screen goes black & white when HDMI is plugged in, reinstall the display driver, perform calibration, reset control panel settings, etc.

While Color Filters is turned on, everything you try viewing on your iPhone should now be in black and white. If this is the first time you are trying out the phone's grayscale color scheme, it ...

Black Ops 6's 'Necroclaus' loading screen. Image credit: Activision Publishing. Another image of a gloved hand was used to show off a new Zombies community event.

Black Ops 6's 'Necroclaus' loading screen. Image credit: Activision Publishing. Another image of a gloved hand was used to show off a new Zombies community event.

If Sekiro Shadows Die Twice is stuck on loading screen, displaying a black screen, or not launching at all, follow the solutions mentioned here.

The failure screen confusing includes no text telling you what to do; just a black-and-white drawing of an iPhone in front of an Apple TV puck. This issue can arise on Apple TV HD and Apple TV 4K.