unlock sony ericsson k660i for free

was wondering where i could get to unlock a sony ericsson k660i for free.any help would be much appreciated.many thanks.

what is your sony ericsson k660i's CID? if your sony ericsson k660i is CID53 then follow

http://i1019.photobucket.com/albums/...go_topsony.png

[Tutorial] Patch A2 platform cid 53 Red for free