Software for unlocking Nokia 3120 with F/MBUS cable

My Nokia 3120 (Vodafone Spain prepay) is blocked due to trying 5 bad unlock codes.

I have bought a co port serial cable (F/M Bus) on EBAY and that advert states "suitable for unlocking DCT4 with appropriate software). The only problems is..it doesn't come with any softare....Any ideas?? All I find via Google is old DCT3 unlockers.

Thanks

yes, you have been conned, that cable can upload/download stuff to your phone thats all

you need a prodigy box , unlock clip or something similar to do it.....too expensive for one phone

you can only unlock the old dct3 phones by cable