@ markwu,

Garmin DriveSmart 51 in Europe uses NTU, and not NT maps ...
The latest map is City Navigator Europe NTU 2020.10 and can be found here:
Code:
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Garmin DriveSmart 51 has built-in strong protection and therefore does not see unlocked maps.
If you want your device to see the unlocked maps, you must first repair the software ...
For more information on this matter, see the link below:
Code:
Only the registered members can see the CODE Contents. Please Login OR Register.