Why is the brightness of the Apple iPhone 14 Plus screen suddenly dimmed?

The iPhone 14 Plus has an automatic brightness adjustment function, that is, under different ambient light, the phone can automatically adjust the screen brightness, so that users can see the screen better and more comfortably. If dust enters the light sensor, it is easy to cause errors in detecting the brightness, which will cause the screen to suddenly dim.

There are two solutions, the first is to clean the light sensor, its position is the module on Liu Haiping, you can wipe it with a soft cloth; the second method is to turn off the automatic brightness adjustment function, the method is [Settings] -[Display and Brightness]-[Auto], just turn it off