How did Apple tell the flash to turn on?

Apple's notification flash turns on as follows:

Mobile phone: iphone 13

System: iOS 13

1, enter the Apple phone settings, and select to turn on the auxiliary function.

2. After entering the auxiliary function, find and open the video.

3. Find and turn on the flashing LED at the bottom of the vision to remind you.

4. In this way, the notification flash is turned on, and when the mobile phone has a notification message, the LED light will flash. It is recommended to blink when mute is turned on at the same time.

Apple mobile phone function

From the moment the iPhone was released, Liu Haiping became the unique label of the iPhone. Although Xiaomi 8 Huawei mate20 and other models all adopt Liu Haiping design, with the introduction of water drop screen, digging screen, lifting screen, sliding screen and curved screen, Liu Haiping has become the design eliminated by many Android manufacturers, and only the iPhone is still designed by Liu Haiping.

As we all know, the full screen has a core parameter, which is the screen ratio. The early 16 ratio of full-screen mobile phone screen is very low, such as oppoR 1 1, vivoX20. This kind of mobile phone has a big black border on the top and bottom, which looks awkward. With the emergence of Liu Haiping, water drop screen and hole screen mobile phones, the screen ratio of full-screen mobile phones is getting higher and higher. However, the black border of most Android phones is very serious, and only the black border of iPhone phones maintains a very narrow standard.

Starting from the iPhone4s, the border of the iPhone is a metal body with angular design style. As long as you touch the metal frame of the iPhone, you will have an intuitive experience. It turns out that the border of the iPhone is like this, and it feels so smooth.