OriginOS 4 supports custom screen locking settings, and users can define the screen locking style (layout, font and color) and shortcut information (lunar calendar and festivals, personalized signatures, inverted days and anniversaries) at will.
Function path: (Settings > Desktop, Lock Screen and Wallpaper > Lock Screen > Edit).
If you still have more doubts, you can enter vivo official website-My-Online Customer Service-Enter labor and consult online customer service feedback.