How to unlock an black bery curve ce0168 .

BLACKBERRY BOLD 9780 WHITE UNLOCKED NEW, GREAT PHONE
HI, I HAVE FOR SALE MY OTHER HALFS BLACKBERRY BOLD 9780 IN WHITE, THIS PHONE IS ONLY ABOUT 2 MONTHS OLD AND IN FABULOUS CONDITION, IT STILL HAS PROTECTIVE CASSING ON SCREEN AND BACK COVER, I AM ONLY SELLING THIS PHONE DUE TO HER UPGRADING TO A NEW ONE. ANY QUESTIONS PLEASE CALL/TEXT 07706510600 THANKS