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Updates & Downloads


Forerunner 945 software version 5.09 Beta

as of September 23, 2020

Download (25.69 MB)

View installation instructions

Notes:


Change History

Changes made from version 5.00 to 5.09:

Changes made from version 4.40 to 4.87:

Changes made from version 4.40 to 4.41:

Changes made from version 4.20 to 4.29:

Changes made from version 4.00 to 4.06:

Changes made from version 3.30 to 3.77:

Changes made from version 3.08 to 3.15:

Changes made from version 2.80 to 3.08:

Changes made from version 2.70 to 2.72:

Changes made from version 2.50 to 2.64:

Changes made from version 2.40 to 2.48:


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.