Ask Huawei how to set a black screen with information, and the screen will light up.

Taking Huawei mate 7 mobile phone as an example, the setting method is as follows:

First, click "Settings" on Huawei mate 7 mobile phone desktop.

Secondly, after entering the settings, select the "notification and status bar" option.

3. After entering, find the item "Notification Management" and click Enter.

Four, find the "information" and enter, and then click enter.

5. After entering the information, just turn on the switch of the options in the red box below.