There is a title in the lower right corner of Huawei mobile phone screen.

This is because the reminder pushed by the APP runs in the background.

If you don't want reality, you can 1. Find the installed news APP on the main page of the mobile phone and click Open; 2. After entering the homepage of the APP, find my button icon at the lower right and click; 3. On my personal page, slide up and down to find the settings, and click to enter the settings page; 4. On the Settings page, find the lock screen settings and click Enter. Different apps may use different words, but the meaning is definitely similar; 5. What you see now is that the lock screen is open, that is, the status bar is green, indicating the working state; 6. Just slide the sliding button with the words "Lock Screen" to the left. In the future, unless you open it manually, you won't receive any screen lock advertisements.