How does Huawei mate30pro get rid of the screen display?

1/6 Step by step reading

Turn on the phone settings first.

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Click the notification option.

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Click the desktop icon corner option,

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Click the corner marker to display the mode options.

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Select the display mode from the options that pop up at the bottom.

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If you want to turn off the monitor, you can click the button behind the corresponding application, and then click Close.