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No, an SD card isn’t required. We would suggest using the Garmin Express program to check for any map and software updates. If you haven't installed Garmin Express please download it from the following link: www.garmin.com/express This Garmin FAQ will help with updating the software and maps: http://bit.ly/2y4lUI3 Thanks, James
Sorry, there was a problem. Please try again later.My first one took about 3 hrs. But, was very satisfied with the results
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