@Butters,

Okay, this is not as straight-forward as it sounds. This is what I have done so far:

- installed Mapsource 6.16.3
- Installed MapInstall
- Downloaded unlocked City Navigator NT 2017.10 [gmapsupp.img] - I was able to come across this img file while reading more about the procedure.


I don't know how to install the NT 2017 on the laptop so I can proceed with the next steps in this guide. All the posts in this thread seem to assume NT is already installed on the computer and then they explain how to override the maps inside the 2720.

I feel bad to say, but I don't know how to open/load this gmapsupp.img into either MapSource or MapInstall. I tried different menus under MapSource and nothing resembling "Load Map" or "Open Map". And MapInstall doesn't show any menu until I connect the 2720 unit, which I left at home...

After reading this entire thread again, it seems like there is a need for an external program to be able to read the gmapsupp.img map under MapSouce, namely Navnet.exe?

The link in this thread is broken. If indeed I need this file to install the NT 2017 on my computer, could someone link me to a safe version?

Thanks in advance!