Hi, I am a certified Garmin app consultant having long experience in this area. You will find me a right destination to get all technical support and special tips related to Garmin app download, installation and accessing of its features. For proper Garmin Map updates, I request you to establish a genuine connection of Garmin app with your PC. After that search Garmin Express, and choose the option to update it. As soon as the Garmin Map Updates process is completed, you are free to disconnect your device. For any further assistance don’t forget to reach me. I will handle it for you.