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Firmware Version 10.00 Now Available

This software update can be downloaded by using Garmin Express, or Garmin Connect Mobile. Please note that once a software update is released it can take up to 24 hours before Garmin Express provides this update to all users.

Change History

Changes made from version 9.10 to 10.00:


  • New feature! Incident Detection: in the event of an incident, this feature can send your location to your emergency contacts specified on Garmin Connect Mobile.
  • Improvements to Workout Data Screen.
  • Improved Grade calculation.


Full change history can be found here.

Note: If you are having trouble updating your Edge 520 to the latest firmware or are not seeing the prompt to install the update, please make sure your device is fully charged. If you continue to have trouble updating the device please see the FAQ listed here.