Since Huawei nova2 and Huawei mate20 pro are both equipped with EMUI operating system, the operation process of setting screen lock signature in Huawei nova2 is the same as that in Huawei mate20 pro. Taking Huawei mate20 pro as an example, the operation of setting the lock screen signature is as follows:

1. Enter the setting interface, find and click "Desktop and Wallpaper".

Second, find and click "Lock Screen Signature".

3. Enter the lock screen signature you want to display in the input box.

4. Click the "Save" button after input.

5. After locking the screen, light up the screen, and you can see the lock screen signature you set.