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Updates & Downloads


Forerunner 945 software version 8.09 Beta

as of October 21, 2021

Download (26.64 MB)

View installation instructions

Notes:


Change History

Changes made from version 8.02 to 8.09:

Changes made from version 7.80 to 8.02:

Changes made from version 7.20 to 7.75:

Changes made from version 6.20 to 6.85:

Changes made from version 5.50 to 6.04:

Changes made from version 5.30 to 5.32:

Changes made from version 5.09 to 5.15:

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_809Beta.zip. Place the GUPDATE.GCD file in the \GARMIN folder of your device's internal storage drive. From the RemoteSW folder, copy the 006B310705.GCD and GUP3114.GCD files to the device's \Garmin\RemoteSW folder.
  3. Disconnect your device from the computer, approve the update on the watch, and wait for the update to finish.
  4. If you would like to revert to the last public release software, place the GUPDATE-780.GCD file in the \GARMIN folder. Rename GUPDATE-780.GCD to GUPDATE.GCD. Copy the 006B379905-415.GCD and GUP3590-701.GCD files from RemoteSW\Downgrades, place them in the device's \Garmin\RemoteSW folder and rename them to 006B310705.GCD and GUP3114.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.