What if Huawei's mobile phone can't have a black screen?

It is recommended to check whether there are applications that occupy the camera, such as flashlights, QR code scanning and other programs. You can close camera-related applications before entering the camera. Or try to restart the phone.

You can also open Settings-Application Management-Camera-Store-Delete Data and clear the cache.

If it cannot be solved, it is recommended to back up important data first, restore factory settings or take the purchase invoice to Huawei service outlets for repair. The phenomenon of black screen is normal, and there are many reasons for this phenomenon: the mobile phone is overloaded, there is a system failure, or the screen will be black when it is stuck. When the mobile phone is in standby state or working state for a long time, the system operation fails or data is lost, and a black screen will appear. When the mobile phone is running at high power consumption for a long time, when the heat generated by the CPU exceeds the endurance limit of the system, it will be forced to close the background program, which will easily lead to a black screen. It is very common for smartphones to have black screens during use. In this case, first confirm whether it is because of the shutdown of the mobile phone or the black screen caused by the system crash or startup. If the former charges the mobile phone as much as possible when it is turned off, if the latter needs to be turned off manually immediately, the general mobile phone will have a reset button, or the combination of volume button and power button will be used to force the system to restart, which will generally solve the problem. If it is still not solved, it is recommended to go to the after-sales site of the mobile phone brand for inspection and maintenance.