The mobile phone camera turns black and white, showing how the mobile phone camera is occupied.

The camera is occupied. The operating steps are as follows: 1, restart the phone; 2. If it is a vivo mobile phone, third-party software occupies the camera, you can enter the developer option on the dial * # * # 7777 # * * to view the running programs, and then close these programs in turn to release the camera occupation (some models can be viewed in Settings-More Settings-Applications-Running); 3. After uninstalling the third-party housekeeper software, enter Settings-Applications and Permissions/More Settings-Application Management-Find "Camera"-Store-Clear the data, and then restart the phone for observation. (The picture will not be deleted, and some models need to go to Settings-More Settings-Apply-Clear all data. 4. Back up important data, and go to Settings-System Management/More Settings-Backup and Reset/Restore Factory Settings-Restore all settings.

A camera, referred to as a camera for short, is a device that uses the principle of optical imaging to form an image and records the image with a negative. Many devices that can record images have the characteristics of cameras. Medical imaging equipment, astronomical observation equipment, etc. A camera is an optical instrument used for photography. After the light reflected by the photographed scene is focused by the camera lens (camera lens) and the shutter for controlling exposure, the photographed scene forms a latent image on the photosensitive material in the camera box, and xxx image is formed after being developed and fixed. This technology is called photography.

There are many kinds of cameras, which can be divided into landscape cameras, printing cameras, digital cameras, document microfilm cameras, microscopic cameras, underwater cameras, aerial cameras, high-speed cameras and so on. According to the size of photographic film, it can be divided into 1 10 camera (picture 13× 17mm), 126 camera (picture 28× 28mm) and 135 camera (picture 24×/kloc).