1. Open the settings of Huawei mate20 mobile phone, click the version number several times when selecting the mobile phone, enter the screensaver password, and enter the developer mode.
2. Set to the system, update to, the developer can choose to run the service and find the healthy mobile phone running in the background to stop running.
3. The mobile phone is connected to Huawei's mobile phone connection assistant installed on the computer with a data cable, and points my device to application management.
4. Find a healthy mobile APP and uninstall it. Do it.