Ok, if I understood correctly, I just need to format the SD card to FAT 32 and insert fw 4.6 inside, which I downloaded here from post 4 (Garman_Nuvi posted it). Rename the fw to gupdate.gcd. And then create a folder next to the fw i have to create a folder Garmin and in it a folder 2087 and in it create a file update.txt with the command you wrote in the post And that should install the software for me just like when I do a patch, I insert an SD card into a switched off Garmin and connect it to a power bank.
Bookmarks