Device Communication Error Garmin | How to Troubleshoot and Fix it

Facing a “Device Communication Error” on your Garmin? Restart your phone and Garmin device. In Garmin Connect Mobile: If stuck, use Force Stop, clear Android cache, or toggle Bluetooth on/off.

Here’s how to troubleshoot and fix it: 

🔧 1. Clear corrupt files on the device

Garmin’s official advice: remove any flagged corrupt file. This often resolves communication issues during syncs or updates.

🔄 2. Use Garmin Express on a PC/Mac

• Reconnect your Garmin via USB.

• Open Garmin Express, then check for firmware updates.

• Applying the latest software often re-establishes stable connections.

📱 3. Bluetooth and Garmin Connect Mobile troubleshooting

• Restart your phone and Garmin device.

• In Garmin Connect Mobile: If stuck, use Force Stop, clear Android cache, or toggle Bluetooth on/off.

• Examine sync records via Settings → Device Sync Audit in the Garmin app for clues.

🌐 4. Network/App-specific errors

• For errors during map updates or firmware installs, disable firewalls or antivirus that might block Garmin, and use a wired (Ethernet) connection instead of Wi‑Fi

🛠️ 5. If pairing/sync fails repeatedly

Restore Bluetooth pairing entirely:

1. Remove Garmin pairing on your phone.

2. Reboot both devices.

3. Set up the connection again from scratch.

Also Read : Due To Restrictions Set for This Device This App Cannot be Downloaded

🧩Checklist

✅ Still not working?

• Try syncing via USB with Garmin Express to isolate the issue (Bluetooth vs USB).

• Review Device Sync Audit logs in the mobile app for hidden errors.

• If all else fails, contact Garmin Support—they can analyze logs and guide repairs or replacements.

How Can I Tell When the Issue Is Fixed?

The Garmin Connect app will display a green dot the top of the My Day page. An automatic sync will also kick off when you the open the app and your device is connected.