Xiaomi 1 1 How to set the lock screen signature 1, open the phone settings, and click the information screen and lock screen.
2. Select the lock screen time style.
3. Click the lock screen to sign again.
4. To edit the signature to be written, turn on the switch that displays the signature on the screen, and then click OK.
This paper takes Xiaomi 1 1 as an example and applies it to MIUI 12 system.