Hello,

Technically (proved), we can save countries img into SD card under Map folder to use on a Garmin device. The City Navigator package from Garmin contains several folder such as JCV, SID, SQLite, POI, ect. stored in the Garmin folder on the SD card.

My question here is assume that I have Thailand and the UK maps stored in the Map folders, will combining JCV, SID, POI, SQLite from individual folder of the City Navigator package for each country into SD Garmin/JCV, SID, POI, SQElite folders make the Gamin function correctly? What I mean here is if I dive in the UK, the device will use UK's JCV, SID, etc files and when I am in Thailand, it will be using the Thai's JCV, SID, POI, etc files.

If the above don't work, what would be your suggestion beside setup (delete, copy and paste) the SD card to the country that I am going to visit prior to use the Garmin device there

Appreciate your hints on the above

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CEO76

CEO76 Reviewed by CEO76 on 20th November 2019. Create micro SD card for Garmin 3590 Hello all, I am new to this forum and considered to be at a ground level when it comes to interfere to hardware level of Garmin device. I have a Garmin Nuvi model 3590 LMT with pre-loaded with North America map. I am living in Vietnam and would like to use this device here. What I want to do is using the Micro SD card for installing Vietnam map. Browsing the forum, I have found 2 maps that can be used. South East Asis Map NT 2018.40, posted by active member Garmin_Nuvi, which can be Rating: 5