You need to have to Usb Phone to Pc connector to refresh the code and to unlock your mobile.

no, i dont

it depends on the lock that you have put on your phone is it a master lock with a combination or a guard security with a key

Friend you can unlock your mobile using the unlocking code & you can get the free unlocking service here www.unlock-free.com ...After that you follow the instructions here http://www.mobileunlockguide.com/ .This site helps you throughout the process..