IF that's the case you need to delete them, create a primary partition, format it to FAT32, and re-copy your maps. A functioning SD card should be detected if these troubleshooting steps are taken. If using a Mac computer, you can try a different Admin User before trying another computer. Try a different USB port on the computer. So the tip here is: try to see if your SD card has been partitioned to have EXTENDED partitions or LOGICAL partitions. Unplug all USB devices (except for the mouse and keyboard), reboot the computer, and connect again. Linux saved my day and now I can navigate american maps with a european Nuvi. How I found this out is when I got home and tried to manipulate some map images. Several tools on windows like Windows' disk management tool and MiniTool's Partition Editor create nested partitions. I struggled for days with my Garmin and different SD cards from all brands, qualities, speeds, specs.įinally I found out that SD cards must be very strictly partitioned: you must have only 1 PRIMARY PARTITION on the card. Any ideas? I tried to download the Mexico maps (1.25 gig) on the Nuvi internal memory but it says it is too big.hence the SD card! Can I create more space on the Nuvi, paste the Mexico maps and foget about the SD card? Thanks for your help! My computer reads the SD card alright but the Nuvi doesn't! I also have a Nuvi350 and it can read it's SD card just fine.
Hi! I have a Nuvi250 and I just bought a SD card to put Mexico maps on it.
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