GARMIN ADDITIONS FILES (ASR, G2S, DB, 3D...) What & How to update

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Not alternative, files need to go where they can be accessed according to the specific devices requirements, all of this information is recorded in the garmindevice.xml.
Supplemental maps (On an SD card ) Preinstalled maps (On the device) have their own naming protocol and location.

<Name>BaseMaps</Name>
<File>
<Specification>
<Identifier>IMG</Identifier>

</Specification>

<Location>
<Path>.System</Path>
<BaseName>gmapbmap</BaseName>
<FileExtension>img</FileExtension>

</Location>

<TransferDirection>InputOutput</TransferDirection>

</File>


</DataType>

<DataType>
<Name>PreProgrammedMaps</Name>
<File>
<Specification>
<Identifier>IMG</Identifier>

</Specification>

<Location>
<Path>.System</Path>
<BaseName>gmapprom</BaseName>
<FileExtension>img</FileExtension>

</Location>

<TransferDirection>InputOutput</TransferDirection>

</File>


</DataType>

<DataType>
<Name>SupplementalMaps</Name>
<File>
<Specification>
<Identifier>IMG</Identifier>

</Specification>

<Location>
<Path>Map</Path>
<BaseName>gmapsupp</BaseName>
<FileExtension>img</FileExtension>

</Location>

<TransferDirection>InputOutput</TransferDirection>

</File>


</DataType>

<DataType>
<Name>NMaps</Name>
<File>
<Specification>
<Identifier>IMG</Identifier>

</Specification>

<Location>
<Path>Map</Path>
<FileExtension>img</FileExtension>

</Location>

<TransferDirection>InputOutput</TransferDirection>

</File>


</DataType>

<DataType>
<Name>cityXplorer</Name>
<File>
<Specification>
<Identifier>MMR</Identifier>

</Specification>

<Location>
<Path>Map</Path>
<FileExtension>mmr</FileExtension>

</Location>

<TransferDirection>InputOutput</TransferDirection>

</File>


</DataType>

<DataType>
<Name>TimeZoneMaps</Name>
<File>
<Specification>
<Identifier>IMG</Identifier>

</Specification>

<Location>
<Path>.System</Path>
<BaseName>gmaptz</BaseName>
<FileExtension>img</FileExtension>

</Location>

<TransferDirection>InputOutput</TransferDirection>

</File>


</DataType>

<DataType>
<Name>Loc8</Name>
<File>
<Specification>
<Identifier>LOC8</Identifier>

</Specification>

<Location>
<Path>.System</Path>
<BaseName>LOC8</BaseName>
<FileExtension>UNL</FileExtension>

</Location>

<TransferDirection>InputOutput</TransferDirection>

</File>


</DataType>

<DataType>
<Name>GarminAdjacencytoSSID</Name>

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<File>
<Specification>
<Identifier>G2S</Identifier>

</Specification>

<Location>
<Path>.System/G2S</Path>
<FileExtension>g2s</FileExtension>

</Location>

<TransferDirection>InputOutput</TransferDirection>

</File>


</DataType>

<DataType>
<Name>trafficTrendsv2</Name>
<File>
<Specification>
<Identifier>HTF</Identifier>

</Specification>

<Location>
<Path>.System/SQLite</Path>
<FileExtension>db</FileExtension>

</Location>

<TransferDirection>InputOutput</TransferDirection>

</File>


</DataType>

<DataType>
<Name>PreProgrammedLaneAssistPortraitFull</Name>
<File>
<Specification>
<Identifier>JCV</Identifier>

</Specification>

<Location>
<Path>.System/JCV</Path>
<FileExtension>jcv</FileExtension>

</Location>

<TransferDirection>InputOutput</TransferDirection>

</File>


</DataType>

Just tell us what you are trying to achieve it would be easier.

Garmin_Nuvi Reviewed by Garmin_Nuvi on 26th April 2024. GARMIN ADDITIONS FILES (ASR, G2S, DB, 3D...) What & How to update This tutorial will try to explain you the additions files, what they are used for and how to update these files. In a hidden .System folder of your device will find the files and the folders that support all your device features, will find the IMG(maps) files gmapbmap.img(the base map), gmapdem.img(DEM map) and other folders, the most important for the update are ASR, JCV, G2S and SQlite. Let’s see what and how to update this folder with the right files. Rule N 1 ALWAYS BACKUP YOUR Rating: 5