User's Manual

Allow installation of applications with unknown sources.

 Trusted credentials

Display trusted CA certificates from system and user applications. Allow applications to access secure certificates/other credentials.

 Install from SD card

Install encrypted certificates from SD card.

 Clear credentials

Remove all certificates.

 Language & input

Use the Language & Keyboard settings to select the language for the text on your phone and for configuring the input method.

 Backup & reset

You can backup your data and reset your phone in this interface.

【SYSTEM】

 Date & time

You can use Date & Time settings to set your preferences for how dates are displayed. You can also use these settings to set your own time

and time zone, rather than obtaining the current time from the network, etc.

 Accessibility

You use the Accessibility settings to configure any accessibility plug-ins you have installed on your phone.

 Developer options

You can manage your develop tools through this function.

 About phone