P20 received the WeChat call without ringing or vibration, and only the screen lock notification was displayed on the black screen, and the message notification was not displayed until the other party

P20 received the WeChat call without ringing or vibration, and only the screen lock notification was displayed on the black screen, and the message notification was not displayed until the other party hung up. What's that noise? Reason 1: The mobile phone has face unlocking function.

When the face unlocking mode is set to direct unlocking: in order to protect the privacy of the owner, the message content will be hidden and no details will be displayed when the screen is locked.

When the face unlocking mode is set to slide screen unlocking: in this case, if the smart display screen lock notification is turned on, the message content will be hidden when the screen is locked, and the message details will be displayed only after the face recognition is successful.

Solution:

If you want to unlock it with your face, but don't want to hide the message under the lock screen, you can enter.

EMUI8。 X: settings? & gt？ Security and privacy? & gt？ Unlock the face, enter the screen lock password, and close the smart display screen lock notification after entering the face information.

EMUI9.0: settings? & gt？ Security and privacy? & gt？ Unlock the face or set it? & gt？ Security and privacy? & gt？ Face recognition: enter the screen lock password, and close the smart display screen lock notification after entering the face information.

You can directly select other unlocking methods (fingerprint or screen lock password) to unlock the screen and view the message.

Reason 2: The mobile phone is set with hidden notification content, and no message is displayed when the screen is locked.

Solution:

EMUI8。 X: settings? & gt？ Applications and notifications? & gt？ Notification management? & gt More icons >? Lock screen notifications and set them to display all notifications.

EMUI9.0: settings? & gt？ Notification center? & gt？ Lock screen notifications and set them to display all notifications.

Cause 3: The notification highlighting function will only be displayed after the magazine lock screen is set.

Lock screen style is not set to magazine lock screen. Please set the screen lock interface first, and display the notification details as a magazine lock screen.

Solution:

You can also find the theme application on the desktop, or slide down in the desktop interface to open smart search, and enter the theme in the search box to open the theme application.

EMUI 8。 Xu: Get to the point? & gt？ Mine? & gt？ Mix and match? & gt？ Lock the screen of the magazine, and then click Apply.

EMUI9.0: theme? & gt？ Mine? & gt？ Mix and match? & gt？ Lock screen style, choose magazine lock screen.

Please check whether the notification bright screen prompt switch is turned on: after setting the magazine lock screen, enter:

EMUI 9.0: settings? & gt？ Notification center? & gt？ More notification settings? & gt？ Notify the bright screen prompt,

EMUI 8。 X: settings? & gt？ Applications and notifications? & gt？ Notification and status bar settings,

Turn on notification highlighting.

Reason 4: The application has set the screen lock notification: the application that has not turned on the screen lock notification will not highlight the screen when it receives the new message or notification.

Operation path:

EMUI 9.0: settings? & gt？ Notification center? & gt？ Notification management;

EMUI 8。 X: settings? & gt？ Applications and notifications? & gt？ Notification management;

Select the application for which you want to set the message highlighting screen, and open the license notification and screen lock notification.

Reason 5: The third-party application has set the hidden message content.

Solution:

Open QQ: enter the settings? & gt？ Leave a message notification, turn on the notification display message content switch.

Open WeChat: Enter me? & gt？ Settings? & gt？ New message alert, open notification to display message details.

If none of the above methods can solve your problem, please back up your important data in advance, restore your mobile phone to factory settings and try again, or take the purchase invoice to Huawei customer service center for testing and processing.