Inform Zhonghua how to turn on the mobile phone and turn off the do not disturb mode.

1. Taking Huawei P20 mobile phone as an example, we can see that the "Moon" icon appears in the upper right corner of the mobile phone page at this time, indicating that the mobile phone is in do not disturb mode.

2. Then use your mobile phone to slide down at the top of the page. I don't see the "Do Not Disturb" shortcut key in the pop-up notification bar. Click the "Pen" icon in the upper right corner.

3. Enter the notification bar settings page and find the "Do Not Disturb" icon that is not displayed on the lower page.

4. Hold down the icon and drag it to the display notification page above.

5. Then return to the home page of the mobile phone, and you can see the open "Do Not Disturb" icon in the drop-down notification bar. Click this icon to turn off Do Not Disturb mode in the notification.