I locked my nokia phone with security code. It’s NOT locked with sim pin.
Now, I have forgotten the code. Is there a free software to unlock it? If yes, where can i download it? Pls don’t suggest to take the mobile to the nearest nokia care centre. That’s an obvious solution.

You can get the Free master reset code for Nokia DCT Phones at here http://www.unlocking4free.com/nokia and reset from security lock,It’s DCT nokia means you can unlock it.
Friend just reset ur phone to factory mode before doing this backup all ur contacts to memory card and as well as othe file wich r in mobile
go to any computerised mobile repair shops- though it is not that legal.
Try all the possible codes. One of them will surely fit in.
get your mobile flashed