What is the black screen of Apple's mobile phone camera?

The analysis can be performed as follows:

The reason why Apple's mobile phone takes a black screen with a camera;

One: the camera hardware problem.

Two: system version BUG problem. Details are as follows:

1. When we use the camera on WeChat or other applications, we sometimes encounter a black screen. This is mainly because the application does not have access to the camera, as shown in the figure below.

2, we can click on the phone settings to enter privacy, as shown in the figure below.

3. Next, select the camera in Privacy, as shown in the figure below.

4. Turn on the WeChat switch to allow applications such as WeChat to use the camera function. After setting, you don't need a black screen to take pictures, as shown below.