1, Tik Tok version: Make sure the Tik Tok version is up to date, because the dynamic wallpaper function needs to be updated to work properly.

2. Permission setting: Before setting the dynamic wallpaper, make sure that Tik Tok has been allowed to access the photo album and camera permissions, which is necessary for setting the dynamic wallpaper.

3. Storage space: Dynamic wallpaper usually needs a certain storage space to store related files, so as to ensure that the mobile phone has enough storage space.