* The restriction code or restriction password may be required when using some network services, such as call restriction service. Note that not all network operators support such service.
* If your device display "Enter restriction code" when you insert a new SIM card, it means that your device has been locked to use a certain operator's network and it does not accept SIM cards from other operators.
* Contact your network operator for assistance.
That my problem and how to get code of my cellphone (nokia C1-01)

hope you can solve my problem..

god bless