The process of updating the maps and/or firmware on your Garmin GPS device goes through Garmin Express, so make sure that this particular software is installed on your computer if you want to complete the firmware and/or maps updating process smoothly. Upon installing Garmin Express, you must perform the Garmin Express login using the login details you generated at the time of setup. If you haven’t created an account on Garmin Express yet, then make one by taking the help of experts.