Find "Backup and restore"
Press the Menu key.
Press File manager.
Press Backup and restore.
Select data types
Press Backup contents.
Press All or the required data types.
When the box next to a data type is ticked (V), it's selected.
Press OK.
Back up phone memory
Press the menu icon.
Press Back up now.
Your phone is backed up.
Your phone is backed up.
Exit
Press the Menu key to return to standby mode.