For audio/display settings, please refer to System setting-Audio/Display menu FAQ
Local Settings-System Settings Description
1. Language
Switching the local display language
2. Input Method
Input method on switch, you can turn on the input method you want to use
3. Restore factory settings
Reset all information, will delete all personal information including downloaded applications, files, SD card, hard disk and other external storage devices will not be deleted information
4.System Upgrade
You can upgrade locally as well as online, see S15 firmware upgrade instructions for details.
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