1. Open the phone, find the settings icon of the phone, and click to enter the phone settings.

2. On the mobile phone settings page, you can see that there is no menu you want to find now. Swipe down to find the lock screen and password menu.

3. Find the lock screen and password menu, click directly to enter the menu, and set it.

4. In the penultimate line of lock screen and password, you can see a lock screen signature menu. There is also a prompt below that the set information will be displayed on the lock screen. Click here directly on the lock screen signature. That's it.