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Putting multiple maps on my Garmin 64ST

I have City Navigator and Top Maps on my SD card on my GPS. I put got the BlueChart G2 maps on SD card. How can I put them all on one SD card. I think from what i read i can only have one gmapsupp.img file on the SD card.

Is this true?


  • sussamb 956 Points
    No, your device can have maps named as you wish, but if your Bluechart maps came from Garmin on a card they will only work on that card, so you won't be able to add further maps.
  • jchiar 0 Points
    Can I use gmaptool to combine them?
  • sussamb 956 Points
    Not with the BlueChart map, and little point in combining any others.
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