Forerunner 945 firmware 10.40

Garmin Forerunner 945 received a stable release software update on 13th June 2022. The software update or firmware version 10.40 is the latest firmware for Garmin Forerunner 945 as of August 2022. We look at the key aspects of firmware 10.40 for Forerunner 945 below.

Salient points about firmware 10.40 for Forerunner 945

  • Firmware 10.40 for Forerunner 945 is the latest stable release or finalized firmware as of writing this in August 2022.
  • The latest firmware update addresses bug fixes and brings in performance improvements for the Forerunner 945 series running watches.
  • Firmware version 10.40 for Forerunner 945 can be applied automatically through the Garmin Express application on your computer or the Garmin Connect app on the paired smartphone.
  • Prior to pushing the latest firmware update for Forerunner 945 devices, Garmin had released two minor updates. As part of these minor updates, the Sensor Hub was updated to version 18.02 and ANT/BLE were updated to version 6.15.
  • The firmware update has been pushed out automatically to the Forerunner 945 devices.


Issues resolved in firmware 10.40 for Forerunner 945

The latest software update for Forerunner 945 addresses the following bug fixes:

  • Fixed a bug that could negatively impact cycling VO2 max.
  • Fixed an issue where Run/Walk/Idle times together didn’t equal Total Time displayed for the activity.
  • Fixed an issue where Strength workouts could not be deleted from the device.
  • Fixed a possible crash when completing Strength workouts that didn’t have any rep counting steps.
  • Fixed an issue with Metronome hot key not working in the Walk activity.
  • Fixed an issue that could prevent the device from booting up properly.
  • Other minor improvements and bug fixes.

The software update resolves the boot loop issue on Forerunner 945. It also does resolve multiple issues arising on the strength workouts.

How to deploy firmware 10.40 on Garmin Forerunner 945?

Firmware updates for Fenix and Forerunner series watches are pushed out automatically by Garmin. These updates are released in a phased manner. However, most eligible devices would have already received these firmware updates by now. We look at the two ways in which you can get this firmware update 10.40 for Forerunner 945 devices. The preference must be given to updating Garmin Forerunner through the Garmin Express application on your computer. If you do not have Garmin Express, there is an alternate option to install firmware updates through the Garmin Connect app on the smartphone.

Install software 10.40 on Forerunner using Garmin Express application

  • Garmin Express is a proprietary application that can be installed on any computer. It is available for Windows and macOS computers.
  • Garmin Express for Windows or macOS computers can be downloaded from this page on the Garmin website.
  • The Windows version of Garmin Express comes as an executable file of size 127 MB.
  • The Mac version of Garmin Express comes as a .DMG file with a size of 55.5 MB.
  • Once you have downloaded Garmin Express, you can install it on the computer by executing the file.
  • Validate if Garmin Express is working cleanly. You will need to add your device to the Garmin Express application.
  • Garmin Express helps in pulling firmware updates, map updates, Golf course updates and uploading your activities to the Garmin Connect app.
  • Once you have linked your Forerunner 945 to the Garmin Express application, open the Garmin Express application.
  • Connect your Forerunner 945 to the computer using a USB cable.
  • Allow Garmin Express to validate the current firmware version on Forerunner 945. Allow it to pull the latest firmware version 10.40 from the Garmin website.
  • Once the software has been downloaded on the Garmin Express application, it gets pushed out to the connected Garmin Forerunner 945 device.
  • This will initiate the firmware installation on your Forerunner 945 smartwatch.
  • Please allow sometime for the firmware to be installed automatically on your Forerunner 945 device.
  • You can verify if the latest firmware has been installed on the Forerunner 945 device by going to Settings —-> System and finding the firmware in the About Device section.

Installing firmware 10.40 on Forerunner 945 using Garmin Connect app

  • Garmin Connect is an app that can be installed on the smartphone paired with the Forerunner 945 device.
  • Garmin Connect for Android phones can be downloaded from the Google Play Store page for Garmin Connect.
  • Garmin Connect for iOS devices can be downloaded from the Apple app store page for Garmin Connect.
  • Install Garmin Connect app on the smartphone paired with Forerunner 945. Once the app is installed, link Forerunner 945 with the Garmin Connect account.
  • Do ensure that the Bluetooth connection between the Garmin Connect app and Forerunner 945 is good. Also, do ensure that you have adequate battery charge on the Forerunner 945 and paired smartphone for the firmware update process to complete flawlessly.
  • Garmin Connect validates the current firmware version on your Forerunner 945 device. If a software update is available through the Garmin servers, Garmin Connect will download the firmware files from the Garmin servers automatically.
  • After the software has been downloaded on the phone through Garmin Connect app, it gets pushed out to the Forerunner 945 device over a Bluetooth connection.
  • Once the firmware has been installed on the Forerunner 945, you can verify the current version of software or firmware by going to the Settings —-> System and About Device section on the watch. It would tell you the version of firmware installed on the Forerunner 945 smartwatch.

Can I rollback the firmware on Forerunner 945 device?

Firmware update on Forerunner 945 is an automatic process. You cannot roll back the firmware update or go to a previous version of firmware on the Forerunner 945 on your own. For this, you require a manual process of reverting the firmware files to an earlier option. Sadly, the nature of automatic updates prevents the firmware from being rolled back automatically.


Forerunner 945 is currently on firmware version 10.40. Two significant improvements on this firmware update are the resolution of issues pertaining to strength workouts and boot loops on the affected Forerunner 945 devices. A boot loop does not allow the smartwatch to boot up properly. The firmware update process is completely automated and the software update is sent to your device by Garmin automatically.

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Helen Kurt - Contributor on TECHEPAGES.COM. Reach me on email.

Helen Kurt is a geeky nerd who loves to cover the wearables space. She has over 5 years of experience in the smartwatch domain. You can reach her on email at [email protected].