Just a quick update... I was able to overcome the 65lm protection and change the maps from 49 states to north America.
The interesting thing is that when I tried to use the microSD slot to insert a card with the map loaded onto it, it didn't work. I had to put the map on the Garmin's internal drive for it to work. So now it has the latest North America maps instead of the lower 49 states
Thanks for the great posts on this forum without which I would not have been able to figure it out