"Can only be modified twice. User name can be modified twice a week, and personal data, user data and background picture can be modified five times every 24 hours.

If your recently uploaded personal information (avatar/background image/user name/personal introduction) violates the Community Management Regulations in Aauto Quicker and is handled, you can't change your personal information for the time being. The maximum number of characters of user name (nickname) is 12 characters; Personal introduction is up to 220 words.