1. Unlock Huawei P40 first. On the Huawei mobile phone desktop of EMUI 1 1, click the Settings icon to enter.
2. Enter the settings list menu, and click Notify to enter.
3. then what? In the notification interface, click the desktop icon corner to enter, as shown in the figure below.
4. Enter the desktop icon corner interface and turn off all switches to solve the problem of canceling the application of red exclamation mark.