The first thing you should keep in mind is to always update your device from a reliable source only. When you try to Install Garmin Express on your device and are not able to download and install free Garmin updates for your device, go through these troubleshooting steps to fix the issue. Before going through these steps, please take care of the following points:
1. Make a sufficient room in your device to download all the updates.
2. Close all the unnecessary open tabs working in the background.
3. Make sure that your internet connection remains stable during the downloading.
If you are still stuck with the issue, contact GPS experts for solutions.