Restore original settings
If your device is not working properly, you can reset some settings to their original
values.
1 End all active calls and connections.
2 Select
Menu
>
Settings
and
Phone
>
Phone management
>
Factory settings
>
Restore
.
3 Enter the lock code.
This does not affect documents or files stored on your device.
After restoring the original settings, the device switches off, and then on again. This
may take longer than usual.