If the dynamic wallpaper downloaded from theme I can't be used, you can replace the dynamic wallpaper that comes with your mobile phone to see if it can be used normally. Enter theme one-personality collocation-dynamic wallpaper replacement, try it. If it still doesn't work properly, go to mobile phone settings-more settings-applications-factory application management, find out that "VLlfe-vivo.apk" is the program of vivo dynamic wallpaper, and click reinstall.