Originally Posted by
smokefree
I suspect the *.gma file is related to another map on your device, not the CNE NT 2015.20 map you're trying now. After all, there is a Lifetime Mapupdate subscription linked to your n�vi 50LM. If that is the European map, there's no need to get any unlocked UK map working on the device. Further, your n�vi 50LM would need the NTU version of the European map, not the NT version. JCV for instance would not work.
Basically, if the downloaded unlocked UK map works fine on the n�vi 765, it should be recognised on the n�vi 50LM too.
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