Hi! I have two Garmin Nuvi 1390LMT units with 8GB MicroSD cards installed on each. When I tried to update my maps, Garmin Express reports that I have Lower 49 on one unit and USA Canada maps installed on the other one. I am supposed to have City Navigator North America NT on both units with free lifetime updates. So I downloaded Garmin MapInstall and used it to update both units. According to MapInstall I now have City Navigator North America NT 2014.4 and CN North America NT 2014.40 on each unit. Garmin Express still reports that I have the smaller maps installed. Which program should I trust? :-)
Is Garmin MapInstall correct? Also, what is the difference between City Navigator North America NT and CN North America NT? Thanks in advance for your help!