Thank you very much, spoon1! Host: 169.254.255.1 and port: 21 was the information I was missing. I tried in every way, but 169.254.255.1 was hard to guess. The default port is 21, but host information was essential. I managed to change the name of the map, but the most important thing I managed was that I was able to add voices from my computer to TomTom using FileZilla. This was impossible for me at Nav4 until now. At Nav2 and Nav3 it's simple.