Black Screen iPhone 12 Pro Max after iOS 16 update

Hi João135,

Thanks for coming to Apple Support Communities for help today.

From your description, it sounds like the issue is isolated to the third-party installed screen. This article will help explain the issues this can cause: About genuine iPhone displays.

"The iPhone display is engineered together with iOS software for optimal performance and quality. A nongenuine display might cause compatibility or performance issues. For example, an issue might arise after an iOS software update that contains display updates.

If a service provider uses nongenuine display parts, the following might also occur:

Multi-Touch issues

• Multi-Touch might not respond on parts of the screen
• Degraded Multi-Touch performance, such as missed screen touches or touches not registering in the right location
• Touches might unexpectedly register during a phone call
• Display might not turn off during phone calls
• Accidental edge or palm touches might register

Display brightness and color issues

• True Tone display doesn't function correctly
• Lost or degraded function of the ambient light sensor, causing the screen to dim or brighten incorrectly
• Incorrect display color calibration, such as the display to appearing too yellow or blue
• Display isn't uniformly bright
• Lower maximum brightness
• Unintentional battery drain

We'd suggest taking it to Apple or an Apple Authorized Service Provider for an inspection. Please Contact Apple Support.

Have a fantastic day!