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Updates & Downloads

Forerunner 945 LTE software version 4.07 Beta

as of February 23, 2021

Download (20.19 MB)

View installation instructions


Change History

Changes made from version 3.07 to 4.07:

Installation Instructions

  1. Connect your Forerunner 945 LTE to your computer using the USB cable.
  2. Download and unzip Place the GUPDATE.GCD file in the Garmin folder of your device's internal storage drive.
  3. Place the GUP3709.GCD file into the \Garmin\RemoteSW folder of the device.
  4. Place the file into the \Garmin\RemoteSW folder of the device. (DO NOT EXTRACT)
  5. Disconnect your device from the computer, approve the update on the watch, and wait for the update to finish.