Yes, i'm sure. I'm tried few versions of cyclops and always download unlocked files.
I already thought, the problem is in an old firmware of my Garmin... And it can't be updated (because it is SMART version - garmin express tells me there is no update, some people tried to install standard C510 firmware and got a brick). Though, before, the old base of a Cyclops worked on it. It means my garmin supports these files. Therefore i'm surprised why I have such special problem...