Help finding master code for nokia 1680

Hello,

Does anyone know how I can get the master code to unlock my nokia 1680?
I have been unable to use the phone for the past 4 months now as I need the security code for it.
The defult code does not work & have been told that if you get a master code for your phone by giving your
IMEI number then you are able to unlock it.
Any help would be much appreciated.

The IMEI number for the phone is 353216033746723.

Thank you,
cjrboys