Important Help For Samsung Galaxy series and other newer Android models: If it is asking for Service Provider Code then you enter your SPCK CODE.If its asking for network code or network pin or network control key, then you need to simply enter your NCK CODE.Pay attention to which code the phone is actually asking for: The phone will ask you to enter 'unlocking code' ( or something similar ).Insert a non accepted SIM card ( your new one ).How To Enter Unlock Codes for Samsung ModelsĪndroid Models Default Method ( Works on most new models ) SUBPROVIDER also known as SCK - A Sub Provider Unlocking codeĭEFREEZE also known as MCK or FREEZE - Is an unfreeze code PROVIDER also known as SPCK - A Service Provider Unlocking code NETWORK also known as NCK - The main Network unlocking code The unlocking codes you will receive will look something like this: Understanding your Samsung Unlocking Codes: