Samsung Galaxy S3 series mobile phone theme is the default. If you need to change other topics, you can refer to the following methods:

1. Use the browser in the mobile phone menu to surf the Internet and directly search for the required software (such as 9 1 theme, Go desktop, etc.). ) to download.

2. Download the software in APK format with a computer, connect the mobile phone with a data cable, and then install it.

3. Download a market software first, such as Android market, Airfront market, etc. Then use this software to download the software, but it may consume a lot of traffic. It is recommended that you use it when connecting to a wireless network.

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I hope it helps you. Have a nice day!