If you try and use MapInstall to push directly to the Zumo, it will only show mapsets that have an unlock code created - it will not allow a push of the 2022.10 maps. That initial push of a small version of the mapset is necessary to get the unlock code to the Zumo so it can open the maps on the SD card, and that path looks like it's no longer available. With MapInstall - you can push the whole mapset to an SD card, but when you put that SD card back into the Zumo, on boot it will say "Can't unlock maps".
#GARMIN MAPINSTALL NO UNLOCKED MAPS UPDATE#
I went back to an earlier version of Garmin Express from a backup (7.1.3), but on launch that program forces an update to 7.4.1 - and that version has the same behavior as the current, it will not allow choosing a smaller mapset for these 2022.10 maps. reinstall sd card into 550 and reboot the GPSīut with the current version of Garmin Express (7.6.0), when you try and push the maps to the device - it no longer gives any prompts about choosing a smaller mapset, it simply states that the device doesn't have enough memory - please contact Garmin for options. Copy SD card contents to NAS (only necessary if you want a backup) Use MapInstall to push all maps directly to SD card
Copy device memory contents to NAS (only necessary if you want a backup) only delete GMAPPROM.IMG on GPS itself (can leave gmapprom.gma) push 2021.30 straight to GPS via Garmin Express, also to PC to activate it (even if already there) - it only pushes Canada and Border States
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