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How to set Huawei mobile phone do not disturb mode?

Huawei's mobile phone opens the Do Not Disturb mode in three steps:

Tools/raw materials: Huawei p40, HarmonyOS HarmonyOS7, setup.

1, let's first open the settings on the mobile phone and find the sound and vibration.

2. The "Do Not Disturb" option in the sound and vibration page.

3. Turn on the "Do Not Disturb" switch button.