How to Install Software and Map Updates to My D2 Mach 1

D2 Mach 1 software should be kept up-to-date in order to take advantage of improvements and bug fixes. Updates are free, and easy to install. Software updates can be installed through the Garmin Connect app. Software, map, and CourseView updates can be installed through Garmin Express. You can also add or remove maps directly from the watch while connected to Wi-Fi (see - Using Map Manager on Garmin Watches for more details).

NOTE: This FAQ is not for aviation maps and charts. For information on updating those, refer to your owner's manual and Garmin Aviation Product Support.

Garmin Connect App

The Garmin Connect app will only download software updates automatically behind the scenes while your watch is connected to your mobile phone. There are no steps required to obtain the latest software. Once an update has been sent to the watch, the watch will automatically install the update, or prompt the user for further action. Select your mobile app platform below to download Garmin Connect.

Garmin Express

Garmin Express provides the ability to check for software automatically each time the watch is connected to a computer. For information on downloading and installing Garmin Express, see - How Do I Install Garmin Express?

Updating the D2 Mach 1 Software Through Garmin Express

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Updating and Managing Maps on an Outdoor Watch in Garmin Express

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NOTE: If you are having difficulty with this process, try watching one of the videos after identifying your watch or search the Support Center with "Garmin Express" identified as your product for further troubleshooting assistance.