thought id share for all you e51 owners out here.......
you can lock your phone remotely via sms, perfect for when you have lost your phone or left it somewhere where others have access to it...
goto....
menu, tools, settings, general, security, phone and sim card, "allow remote lock" change it to YES, "enter remote lock message" example "lockmyphone"
send a sms message to your phone from any another phone with the text "lockmyphone"
and your phone is locked remotely!! wallah!!!
enjoy..