How does Apple's mobile phone open the detection mode detection screen?

Apple's mobile phone doesn't have its own "screen detection" program, and it can only be detected by "detecting bad websites".

Materials/Tools: Take iPhone8 as an example.

The specific operation includes the following steps:

First, enter "Detect Bad URL" in the search bar above the "Safari" browser that comes with Apple's mobile phone, as shown in the figure below.

2. After entering the "website for detecting screen bad spots", you can see that the lower part of the mobile phone is the area for detecting screen bad spots. Swiping to the right can change different colors, including black, green and red.

Thirdly, in the "control center" of the iPhone's home screen, the brightness level of the mobile phone is maximized, which makes it easier to detect the screen and make it easier to observe.

4. Finally, Apple's mobile phone will be displayed horizontally. At this point, the whole screen will be filled with the current color, so that it can detect whether there are "bad spots" and "splash screens" on the mobile phone screen, as shown in the figure below.