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How to set the information background of oppo r9?

The background of SMS changes with the theme. Some mobile phones such as Find 7 and N3 can download global themes. If there is no third-party global theme, it is not supported to modify the SMS background.

How to change the wallpaper of mobile phone call interface;

1, the contact number is saved in the mobile phone, and the wallpaper can be displayed during the call. This is for a single contact. If you want to replace them all, you can download third-party application themes for use.

2, the latest ColorOS version, change the desktop wallpaper, you can modify the call background picture.