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
Changes made from version 8.20 to 8.78:
- Notice: This update is incompatible with the current version of the Garmin Explore mobile app for Android. A compatible version of the Explore app is coming soon.
- Added Pickleball and Padel activities.
- Added support for Connect IQ system 5.
- Updated incident detection to better distinguish between supported and unsupported activities.
- Modified the software update process to allow the user to defer the installation. This replaces the automatic install during the user's sleep window.
- Other minor bug fixes and improvements.
Installation Instructions
- Connect your Forerunner 945 to your computer using the USB cable.
- Download and unzip Forerunner945_878Beta.zip. Place the GUPDATE.GCD file in the \GARMIN folder of your device's internal storage drive. From the RemoteSW folder, copy the GUP3303.GCD file to the device's \Garmin\RemoteSW folder.
- 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-820.GCD file in the \GARMIN folder. Rename GUPDATE-820.GCD to GUPDATE.GCD. Copy the GUP3303-611.GCD file from RemoteSW\Downgrades, place it in the device's \Garmin\RemoteSW folder and rename it to GUP3303.GCD. Disconnect the device to install. NOTE: If you revert to an older version of software, all of your settings will be reset to defaults.
