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If you need to change the theme of Samsung mobile phone, please refer to the following:

1. You can download and install a theme software (. APK format) through Samsung App Store or other means. After the download is completed, open the downloaded theme software and select the application.

2. Replace other theme software and download and install it again.

3. Download the third-party software that supports the theme desktop in the mobile phone, such as Panda Theme, and try to download and install such theme software.

4. If the theme is applied, the screensaver cannot be changed, which may be caused by the compatibility problem between the software and the mobile phone.