Control panelThemesGo to Desk > Control panel > Themes.Themes are special files that contain formattinginformation, images, and sounds. With themes you canchange the look and sound of your smartphone. Thedefault themes cannot be deleted.To change the look or sound of your smartphone, tapThemes. Select a theme from the list and tap Apply. Topreview a selected theme, tap Test, then Preview. TapSounds to listen to the sounds of the theme, ifavailable.Device languageGo to Desk > Control panel > Device language.To change the language of your smartphone, tapDevice language:. Changing the language also affectssome regional settings, such as currency symbols andmeasurement units.Service commandsGo to Desk > Control panel > Service commands.You can send service requests, such as activationcommands for network services to your service provider.For more information, contact your service provider.To send a request, write it in the field, and tap Send.