I don't have a Nuvi 40 on me to look at. I am trying to help my father with an issue with his Nuvi 40 but he does not live near me. I need to know, what is the directory structure inside the Nuvi 40 unit itself? Is there a .System directory and a Garmin directory? Which directory in the unit are the maps stored? In the .System directory? And for the JCV file, is it stored in the .System\JCV subdirectory? Also for a Nuvi 40, that is using an SD card to store maps and JCV files, what is the directory location on the SD card where these should be stored? In the SD card are the maps stored in the Garmin directory or a Garmin\Map subdirectory? Do these map files need a certain name such as gmapprom.img or gmapsupp.img or can it be any name? And same with the JCV file in the SD card, is it stored in the Garmin\JCV subdirectory? Thanks for your help in advance.

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zajacz Reviewed by zajacz on 1st October 2023. Garmin Nuvi 40 help with directory structure in unit and SD card I don't have a Nuvi 40 on me to look at. I am trying to help my father with an issue with his Nuvi 40 but he does not live near me. I need to know, what is the directory structure inside the Nuvi 40 unit itself? Is there a .System directory and a Garmin directory? Which directory in the unit are the maps stored? In the .System directory? And for the JCV file, is it stored in the .System\JCV subdirectory? Also for a Nuvi 40, that is using an SD card to store maps and JCV files, what is Rating: 5

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