I've got a new Garmin Nuvi 2589LMT with the pre-installed maps of North America NT 2017.30.
I'm trying without success to install the map of Europe on a microSD card ,but I get the "cannot unlock maps" error.
I've downloaded garmin City Navigator Europe NT 2017.10.
I've installed the map also in the computer (locked), and then I've unlocked it with the "Protected Garmin file toolkit_2254".
In BaseCamp, under the [Map Prodcut Manager] show the map as [Not lockable].
I've sent the selected maps to the SD card with BaseCamp+MapInstall, once in the GPS it shows "cannot unlock maps" + "corrupted maps".
Do these new units have some more advanced scheme in detecting map signature or so? Is there a file inside the GPS that check security on the map?
Even if it was sent to the SD card though their own software?