Ok rename the file named gmapsupp to gmapsupp.img
I guess the FID of this map is 3250, so that sd, like it is, cant work, because it lacks of gmapsupp.gma file and you cant get it only buying the sd from Garmin.
Solution is unlocking the map with gimgunlock.
Download it here [Only registered and activated users can see links. ]
Drag the gmapsupp.img in its icon, it will be unlocked.
Then remove all the files you have in sd /Garmin but the unlocked gmapsupp.img
It should work.
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