The method of setting screen lock nickname and personalized signature for vivo mobile phone can refer to the following steps:

1. Enter the I theme and set the lock screen style of the mobile phone to "light and simple" or "light and pleasant".

Note: If there is no "light simplicity" or "light pleasure", it means that this model does not support setting screen lock nicknames and personalized signatures.

2. In the lock screen display interface, click the lock screen avatar to slide down (some models hold down the lock screen avatar), and click the "+"sign in the pop-up interface.

3. After jumping to the setting interface, you can edit the nickname and personalized signature, select the color, and finally save.

Note: The screen lock nickname can be edited up to 6 characters.