@roconoeman

Obviously you have not followed Garmin´s introduction of the new locking system for products with a MapID >= 2200. For ordinary MapSource, MapInstall & BaseCamp there must be a GMA file (a digital certificate) to make the map authenticated.
Use the patched versions of [Only registered and activated users can see links. ] & [Only registered and activated users can see links. ] to get rid of the GMA check.
The firmware in Garmin newer GPS units may still block the map when transferred to such GPS receiver. Untouched versions is for the connoisseurs who have adequate knowledge. It's always good to have the original start-point (the untouched version) when trying to test new unlocking alternatives.