If you are using a Huawei mobile phone, the third-party application of the mobile phone will push the advertisement after the screen is locked or unlocked. If you don't want to see the advertisement interface, you can try to close it in the following ways:

1. Confirm the application that generated the screen-locked advertisement:

Take a screenshot in the advertisement interface (press the power button+the volume button at the same time), then enter the gallery, find the intercepted advertisement image, and click the circle I in the upper right corner of the image to view the image path. Determine the application of advertisement according to the image path (for example: path: internal storage/pictures/screenshots/screenshot-21211624-161345-com.taobao.taobao.jpg)

2. Go to the settings interface to find the corresponding application closing notice:

Open the settings, search to enter the application management, and find the front. (After closing the notification, the normal message reception of the software may be affected, so please be careful.)

3. Check whether there is a setting button in the advertisement page, and if there is, click and select the lock screen display to close.

4. Prohibit applications from using the floating window display: open the settings, search and enter the permission management, click the permission interface to open the floating window, and turn off the switch of infrequently used applications.

5. If you don't need to use the "Generate Lock Screen Advertisement" application, I suggest you just uninstall it directly.

6. If the above methods still can't solve your problem, it is recommended that you back up your data in advance (third-party applications such as QQ and WeChat need to be backed up separately) and then restore the factory settings.