What happened when Huawei Glory v30 became a black and white screen?

If the honor screen turns black and white, the following methods are recommended for troubleshooting:

First, check whether the sleep time/stop time for healthy use of the mobile phone is turned on.

If the sleep time/stop time for healthy use of the mobile phone is set, the unavailable application icon will turn gray after the limit time is reached.

Shutdown method: Go to Settings "Healthy Use of Mobile Phone" Sleep Time/Stop Time, and check whether the switch is turned on. When this setting is turned on, the screen will turn black and white when the phone reaches the set sleep time/stop time.

Secondly, if the above troubleshooting does not solve the problem, please try to restore all the settings of the phone.

This operation mainly restores network settings, screen lock password, desktop layout, etc. If the mobile phone supports fingerprints or faces, it will also recover the fingerprint and face information and will not delete other types of data or files. Find devices, users and accounts, device manager, application settings, etc. Will not be restored.

Go to Settings System and Update to reset, click Restore all settings, and restore according to the screen prompts.

Third, if the problem still exists, it is recommended to go to the service center for testing and handling.

Find the preset application-My Huawei APP/ Service APP, open it and enter the service page. When you click Quick Service to go to the store for maintenance, you can check the nearby service center. It is suggested that before going to the service center, back up the data in your mobile phone (such as QQ and WeChat) in advance, and call the service center in advance to confirm the time, so as not to delay your time ~