Thread: anything special about SD cards in Garmin Zumos?

Originally Posted by Giomen

Probably you have an outdated SW down to ver.3.00. for your Zumo 550. Garmin adds support for SD card above 2Ãá (SDHC) in that version. From ver.4.80 Garmin also added the ability to read the map file above 2Gb.

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Thanks - that makes a lot of sense! I come from an IT background, and the problem just smelled of something low level like that. I will get my friend to check the revision, but my guess is that it has never been updated.

Everything I read is that Garmin Express should be used, but because I have a garmin Montana, I use Basecamp, and it picked up the Zumo okay and also offered to update its firmware, which makes me wonder whether Basecamp is a sufficient substitute for Garmin Express, or is there something that the Zumo explicitly needs Garmin Express for?