What Files supports my Garmin Device and which Files I should update?

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Looking at the garmindevice.xml
you can have 1 Preinstalled mapset in the internal storage Garmin/gmapprom.img
and 1 supplemental mapset Garmin/gmapsupp.img that will work together.
Your device can can use an SD card up to 32Gb so you could create a set of under 2Gb mapsets but to use them you would have to change their name when you want to use one with a PC to gmapsupp.img as your device can only recognise 1 gmapprom or 1 gmapsupp.
Alternatively multiple SD cards.

<Path>Garmin</Path>
<BaseName>gmapprom</BaseName>
<FileExtension>img</FileExtension>
</Location>
<TransferDirection>InputOutput</TransferDirection>
</File>
</DataType>
<DataType>
<Name>SupplementalMaps</Name>
<File>
<Specification>
<Identifier>IMG-Format1</Identifier>
</Specification>
<Location>

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<Path>Garmin</Path>
<BaseName>gmapsupp</BaseName>
<FileExtension>img</FileExtension>
</Location>
<TransferDirection>InputOutput</TransferDirection>
</File>

Garmin_Nuvi Reviewed by Garmin_Nuvi on 5th February 2024. What Files supports my Garmin Device and which Files I should update? What Files supports my Garmin Device and which Files I should update? Often, indeed almost always, on the occasion of the release of a release of Maps the Forum is overwhelmed with questions (and therefore of Post) of the type: My Nuvì xxxx supports JCV? If Yes, what type? Can I install in my Nuvì xxxx 3DBuilding Map? Where to copy Maps? In which folder? Rating: 5