1. If you mean setting screen lock nickname and personalized signature:
Enter the theme I-Recommendation-Click on the input box above to enter the search-Go to the "Lock Screen" on the right-Enter "Lightness and Simplicity" or "Lightness and Pleasure" to search, download and apply the lock screen style, then press and draw the avatar, without unlocking the screen interface, and click "+"to set the nickname, signature and avatar.
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.
Second, if it refers to modifying the nickname of vivo account.
Vivo account nickname: enter settings-click account-personal information-(personal information)-click nickname to modify;
Vivo official website community nickname: Go to the "vivo official website" APP-My-Click on the account avatar/nickname-My community-Click on the avatar/nickname, and click on the blue font "Set Nickname" below the avatar to modify it.
Tips:
Vivo account nicknames and Vivo official website community nicknames can only be modified on vivo/iQOO phones and vivo Pad;
Vivo official website community nickname can only be modified once.
Third, if it refers to the change method of WeChat nickname: WeChat-I-click on the avatar-change the WeChat nickname in the name.
Fourth, modify the nickname of mutual transmission: you need to enter the "mutual transmission" app-click on the upper right corner? Dot？ -Settings-Click on the avatar to enter the page, and you can modify the nickname and avatar of the other party respectively.
5. How to change the QQ nickname: Go to mobile QQ-click the avatar in the upper left corner-click the avatar again-click Edit Information-the nickname can be changed.
6. How to change Weibo's nickname: enter Weibo-I-click on the avatar-click "∨" to view and edit basic information-nickname-enter a new nickname-submit.
If you have more questions, you can go to official website /vivo Mall APP-My-Online Customer Service or the webpage link of vivo official website webpage version-Slide to the bottom-Online Customer Service-and enter the manual customer service for consultation and understanding.