It is extremely usual that after using any android or iPhone software for a long time, it may prompt you to upgrade it, such as the Garmin GPS update, so to update you can follow these steps:
Step 1: You must connect your Garmin gadget to your workstation in the second step. Connect it using a USB cord.
Step 2: Go to the settings section of the Garmin Express official website.
Step 3: Check the about section to see the available updates.
Step 4: If an update is available, click Install.
Step 5: Now it's time to restart your device.