gratis = free in danish so the thing is you need a program (search the web for that) and need a cable unlock the mobile.
Try the nokiafree.org sites, they will almost certainly have the info, and probably the software you need. You just have to get the right cable. I got the software for my Samsung E700 from there, and the cable off ebay for £5 posted.
yeah we danes calls it gratis without any accents over the a but hey it is cool we use same words like ale(beer) is really derived from the scandinavian word øl/öl and the german "öl" is oil but the germans has "made" the word lager wich means storage(us danes use the word too for storage) , and now it is a beer type well the knowledge of languages is exiting