Updating a garmin
To the GPS satellites, it's irrelevant whether you're traveling down a one-way street; you're merely a speck moving in relation to your last known position.
To maximize the directional feature of a Garmin, however, you'll need an accurate map.
The first thing the system does is verify 16gb of free space.
Some models of Garmin GPS systems, such as the Street Pilot c340, allow you to update the maps.To answer that question, it's worth reviewing how your Garmin works.When the Garmin receives satellite signals about your location, it's only provided with your global positioning, not where you are in relation to a street grid.FWIW...2.70 which is what my Pilot shipped with from the factory is the latest update from Garmin. But I doubt Garmin is responsible for the firmware of the Honda head-unit.In any case, firmware updates are separate from map updates on Garmin devices. Firmware updates for their devices are somewhat random. The first thing the system does is check the empty blocks on the thumb drive. I took the memory stick out of the vehicle and took it to my computer and it was blank?
Each time I go to the Device Menu and choose update it tells me I must insert a mass data storage device.