As I understand it, you have to backdate your firmware to at least 33.01.23 to install maps above 2015. I'm going to play with it some more, but I'd like to find a source for firmware 51.00.09 which is what I'm currently running on my 2015. Obviously, if I backdate the firmware, I'd like to at least be able to update it to where I'm CURRENTLY at when I'm done updating the maps. This may not be 100% correct, but it's the theory I'm currently working with anyway.
Bookmarks