How can I restart my navigation to work

DavSer Registered Users Posts: 2
New Seeker
First I took out my SD card from navigation because I want to update my navigation. No update worked for my navigation (doesn't recognize it)?! After that, I try to buy new maps, speed cameras etc. but I can't buy anything because I'm from Croatia!!!! You don't have Croatia on folding menu (we are to small or to east I guess). When I sent you e-mails no body answers them. I must ask Renault if I can put other SD card in my navigation system.