Need puk code for Nokia 521 familymobile - Nokia 5200 Cellular Phone

SOURCE: nokia xpressmusic pin blocked enter puk code

PUK code can be given only by your service provider which is specific for each and every mobile number.
Contact your sim customer care department over phone. Its free of cost to get the pin or puk no. If you cant contact through your phone get some other phone and contact them.
Go to the nearest service outlet of your service provider they can also help you.
There is no other go than the above procedure only your service provider cangive it nobody else in this world nor any software.
Go to the below link and you can confirm that the above procedure works and there is a testimonial given by the customer too. http://www.fixya.com/support/t3582685-phome_lg_ke670_put_security_code_phone