Welcome to the Norton Community Forums.
What if you take the sim out of the locked phone and put it into a friends
mobile or a spare mobile phone as this sim and number is set as the buddies
number to unlock the phone protected with Norton Mobile Security.
And with the locked mobile phone purchase a sim starter pack from one of
the mobile phone companies and activate it with your spare mobile or a friends
Then put the new sim in the locked mobile and send the sms message unlock
from the friends mobile or spare phone to your locked device and that should
get you out of trouble.
Make sure the new sim is activated and put into locked phone and the origianl
sim which has the number set as the buddies in the norton Mobile Security
Anti-Theft Setttings is in the unlocked phone(spare or friends mobile)
Don't forget the sms message to send is unlock
Then you will be asked to set up a new password or pin when the locked phone
recieves the message and unlocks.
Let us know how you go.
EDIT- It does not matter what mobile number or sim is in the mobile device when
it is locked and recieves the remote command to unlock. As long as the remote
command or sms message unlock comes from a mobile number set as a buddy
in the Norton Mobile Security Anti-Theft settings and that the message unlock
is sent to the correct mobile number of the sim that is in the locked mobile phone. :-)
Hope that helps.