Here is an easy and step-by-step guide on how to update a Garmin GPS . If you facing any issues with Garmin GPS call Now +1 844-907-0604 Step 1 Open an Internet program and visit the WebUpdater download page (see “Assets” underneath). Click on the “Download” button to download the application to your computer. Step 2 Insert one end of the USB cable into a port on your computer and connect the other end to your GPS device. Step 3 Snap-on the “Start” menu and select “All Programs.” Open the “ Garmin ” folder and snap on the “WebUpdater” passage. Step 4 Select your GPS device in the WebUpdater interface that opens and the utility will check for updates for your Garmin device. Confirm that you want to update your software and the utility will update Garmin GPS . Wait for the update process to complete before disconnecting your Garmin GPS device.