2. Step 2: After entering the phone settings, click on the desktop and wallpaper.

3. Step 3: After entering the desktop and wallpaper, click the lock screen to sign.

4. Step 4: Click the lock screen signature, set the content to blank, and click OK.

5. Step 5: After clicking OK, you can see that Huawei's mobile phone screen lock signature has been cancelled and can be used as needed.