How does Xiaomi mobile phone light up when setting message notification?

Find the settings in your mobile phone first.

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Click Settings to enter the Settings interface.

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In the settings interface, drop down and find the lock screen, password and fingerprint.

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After entering the screen lock, password and fingerprint interface, you can see that the screen is on when the screen lock is notified, and it is turned on by default.

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When you click the screen lock notification, click the button on the right side of the screen to turn off the function.

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If you want to turn this function back on, just click this button again to turn on the screen lock function and inform you that the screen is on.