Country Code,NCK code and Network Unlock code are same,You can get the Nokia X3 COUNTRY CODE at
Simpleunlocking.com and Unlock it...then you can use it any GSM network sim,i have Unlocked from GSM T- Mobile,You need to specify the Network,Country it locked then get the code there and Unlock it,Because some network cannot unlocked ,You can get the GSM Phone Unlocked,CDMA Network locked Phones cannot be Unlocked...
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