Updates & Downloads

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Forerunner 945 software version 5.09 Beta

as of September 23, 2020

Download (25.69 MB)

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.

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Change History

Changes made from version 5.00 to 5.09:

• Added support for Daily Suggested Workouts, which are recommended based on previous activities. You can disable this from activity settings. (Run/Bike > Menu > Training > Workouts > Today's Suggestion.)
• Added support for the Track Run activity, which allows you to record outdoor track data, including lap splits and distance in meters, on a standard shape 400m track.
• Added support for Improved Recovery Time, which takes your stress, sleep, relaxation, and physical activity into consideration.
• Added support for Bouldering and Indoor Climb activity profiles.
• Added support for Grit and Flow features for mountain biking activities. Grit measures the overall difficulty of a ride, and Flow measures how well you maintain your speed throughout the ride.
• Improved optical heart rate performance.
• Updated the look of the Alarm screen.
• Updated the main workout data screen to indicate High, Low, or In Range for the current target.
• Various other improvements and bug fixes.

Changes made from version 4.40 to 4.87:

• Added support for FE-C and Smart Trainer control. See options in Bike Indoor activity.
• Added support for workout videos. The video files can be downloaded via Garmin Express or over WiFi. These videos will display when using an MSN workout that supports them. Download MSN workouts through Garmin Connect.
• Added support for displaying courses to viewers of the user's LiveTrack sessions. Various other LiveTrack improvements
• Added in-place editing of data fields
• Added additional options to Live Event Sharing. Triggers added for Every Mile and Transitions (allowing for multi-sport use)
• Numerous improvements to music experience, usability, and WiFi
• Improved Incoming Call handling
• Fixed problem with device spinning/freezing on activity save due to unintentional file build-up. Note: device will need to sync to Garmin Connect after software update to resolve this issue.
• Fixed problem where certain user's maps took an excessive amount of time to load on boot and were generally sluggish in use
• Greatly improved Around Me search times
• Updated numerous widgets to improve usability and look
• Fixed inability of device to record longest swim PR
• Moved Recovery HR to option on save/discard screen
• Updated post-activity summary pages
• Improvements to segments handling
• Improvements/fixes for on-device weather. Fix instances of missing data.
• Improvements to phone connectivity
• Fixed HRV stress page layout
• Fixed a few issues with Virtual Running and workouts
• Various other improvements and bug fixes

Changes made from version 4.40 to 4.41:

• Updates to improve phone connection reliability

Changes made from version 4.20 to 4.29:

• Improvements to GPS
• Fixed training modes (workouts, intervals, set a target, etc.) in Virtual Running to allow connection to phone app
• Changed filtering of activities for Race an Activity. List of activities is now narrowed to those within the same general sport type.
• Fixed missing auto-run setting in Ski
• Improvements to rep-counting
• Improvements to floor-climb when the user is jogging up/down stairs
• Added SkiSkate profile
• Added BackCountry Ski profile
• Improvements to music playback/sync/providers
• Improvements/fixes to payments
• Made several improvements to Breathwork
• Made several WiFi related improvements
• Various other fixes and improvements

Changes made from version 4.00 to 4.06:

• Add new Virtual Run activity profile. This enables broadcast of speed and heart rate information to virtual running applications such as Zwift.
• Add Widget Glances, a new way to view widget information. The option to enable is found in the Widgets menu.
• Add Low Heart Rate to the Abnormal Heart Rate Alert feature.
• Various improvements for battery performance.
• Fix an issue that was causing loss of treadmill calibration data. For best results, perform an outdoor run before your first treadmill activity.
• Improvements to breathworks
• Miscellaneous bug fixes and improvements.

Changes made from version 3.30 to 3.77:

• Add Garmin Swim 2 Features: Advanced Swim Workouts, Auto rest, Critical Swim Speed, Swim Pacing Alerts
• Added all-day respiration, respiration widget, and breathwork activity
• Improved treadmill calibration
• Added Pilates
• Improvements to audio playback, audio apps
• Fixed crash that could occur on activity save at high elevation
• Fixed issue where sometimes heart rate and PulseOx data would not show when all-day PulseOx was enabled
• Various other fixes and improvements

Changes made from version 3.08 to 3.15:

• Added test code to track down issue with save at high altitude. Please see readme for beta.
• Improvements to segment achievements
• Improve stress readings
• Improvements to media player
• Improvements to phone connectivity
• Fix blocky elevation issue
• Improvements/fixes for Spotify
• Fix potential device freeze on activity summary loop.
• Improvements to headphone connectivity
• Improvements to sensor connectivity
• Fix backlight gesture bug introduced in 3.46 beta
• Various other fixes and improvements

Changes made from version 2.80 to 3.08:

• Added PacePro feature.
• Added additional data field configurations (5 and 6 field).
• Added graphical gauge data fields (i.e. Heart Rate, Cadence, etc.)
• Improve ANT+ and BLE sensor management
• Bluetooth software update to address battery life issues that could occur on some devices
• Improvements to headphone pairing and media player
• Improvements to golf
• Improvement/fixes for Connect IQ
• Some improvements for segments/Strava segments
• Various other fixes/improvements

Changes made from version 2.70 to 2.72:

• Added ability to enable wrist-based heart rate for swimming (pool and open water). This feature is enabled by default. To enable/disable this feature: 1. Open Menu 2. Scroll to 'Wrist Heart Rate' and enter menu 3. Scroll to 'While Swimming' and toggle to 'On'
• Fix swimming cadence/stroke rate
• Improvements to PulseOx settings
• Various fixes for ConnectIQ

Changes made from version 2.50 to 2.64:

• Added ability to enable wrist-based heart rate for swimming (pool and open water). To enable this feature: 1. Open Menu 2. Scroll to 'Wrist Heart Rate' and enter menu 3. Scroll to 'While Swimming' and toggle to 'On'
• Added Connect IQ 3.1 functionality.
• Fixed issues with LiveTrack
• Addressed rare issue of hourly alert drifting off of hour
• Fixed lapping issues in adaptive training plans and workouts
• Addressed 'Around Me' search time when using North Up map
• Fixed issue of duplicates of a user in GroupTrack
• Enabled support for Approach CT10 golf club trackers
• Added Sight N' Go feature

Changes made from version 2.40 to 2.48:

• Fixed bug that would slowly fill temp folder with unnecessary files
• Enable phone position injection to improve GPS fix times after moving long distances
• After Sunset added for backlight gesture option
• Added option to disable/enable lap key for activities
• Various golf improvements
• Added contextual menu accessible from activity paused screen
• Various other improvements

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Installation Instructions

1. Connect your Forerunner 945 to your computer using the USB cable.
2. Download and unzip Forerunner945_509Beta.zip. Place the GUPDATE.GCD file in the \GARMIN folder of your device's internal storage drive.
3. From the RemoteSW folder in the unzipped download, copy the GUP3114.GCD and 006B310705.GCD into the \GARMIN\RemoteSW folder on your device.
4. Disconnect your device from the computer, approve the update on the watch, and wait for the update to finish.
5. If you would like to revert to the last public release software, place the GUPDATE-500.GCD file in the \GARMIN folder. Rename GUPDATE-500.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.
6. To downgrade your peripheral software, place the GUP3114-604.GCD and the 006B310705-440.GCD from the RemoteSW\Downgrades folder into your device's \GARMIN\RemoteSW folder.

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