What should I do if the camera and gallery of ZTE 8 18 mobile phone are missing?

The camera and gallery of ZTE 8 18 mobile phone are gone. The reasons and treatment methods are as follows:

1. Install a third-party camera App, such as an all-around camera, try to see if it can work normally, and eliminate the faults caused by your own camera software.

2. Try to clear the cached data in the camera program set by the mobile phone, and eliminate the fault caused by the cached data of the camera program.

3. If the problem still cannot be solved, back up the data of the mobile phone first, and then restore the factory settings of the mobile phone. Troubleshooting is caused by software.

4. Finally, although the system was upgraded or brushed.