Updates & Downloads
Forerunner 55 software version 4.00 Beta
as of September 20, 2021
View installation instructions
Notes:
- For any issues that you encounter please fill out the form included in the download and attach it to an email to [email protected] Please note that you may not get a response to the email unless we need more information on the issue you report.
- Although this software is believed to be reliable, it has not yet been released for production and should be used at your own risk.
Change History
Changes made from version 3.03 to 4.00:
- Added support for stress from a HRM strap during Yoga and Breathwork sports.
- Added notifications for disconnecting/reconnecting to a LiveTrack session.
- Improved the software update process for external accessories. Installation prompts will now appear after an activity.
- Lengthened duration of Find My Device vibration and beeping
- Added support for simultaneously broadcasting through ANT+ and Bluetooth.
Changes made from version 2.09 to 3.02:
- Fixed Live Event Sharing.
- Fixed Audio Prompts.
- Improved activity saving and loading time.
- Improved daily suggested workout algorithm for entry level runners.
- Improved app selection list current item visibility.
- Added ANATEL ID to the About screen.
Installation Instructions
- Connect your Forerunner 55 to your computer using the USB cable.
- Download and unzip Forerunner55_400Beta.zip. Place the GUPDATE.GCD file in the \GARMIN folder of your device's internal storage drive.
- Disconnect your device from the computer, approve the update on the watch, and wait for the update to finish.
- If you would like to revert to the last public release software, place the GUPDATE-303.GCD file in the \GARMIN folder. Rename GUPDATE-303.GCD to GUPDATE.GCD before disconnecting your device. NOTE: If you revert to an older version of software, all of your settings will be reset to defaults.