I have a GPSMAP 7610xsv unit and was using unlocked maps on an SD Card for several years. In 2018 Garmin introduced an update to the firmware for this (and many other) models that disabled the use of third-party maps, and rendered the map unlockers useless. I've tried every GarminUnlockerAlternative all the way up to v8.0.1, and the gimgtools unlocker, without success. The unit reports that the map cannot be authenticated and is disabled, or that the map isn't unlocked.

Is anyone aware of someone working on this new update to once again allow 3rd party maps?