I have a new 2014 garmin nuvi 65LM with US maps (Lower 49) with the new encrypted file base. I am now able to see the ".system" folder, so no issues there.
However, I\m trying to switch from Lower 49 US to a North America 2015.30 map but it doesn't seem to work when I try to replace the map file on the unit itself (not via SD card)....
I updated the old nuvis without ...