Quote Originally Posted by ag2000 View Post
This model (or any echoMAP model ) does not seem to appear on the list of protected devices.
Don't pay attention to the list of protected devices, it's not for chartplotters.


Quote Originally Posted by ag2000 View Post
I am trying to determine if it will work with my Bluechart G2 Vision HD unlocked maps, which worked with GPSMAP 420s...
Yes, it will work if your BlueChart HD maps are unlocked completely (as Adm.Nelson does).
In the case of your legacy GPSmap420s, it was enough to use the old unlockers to unlock new HD charts.