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Updates & Downloads


Forerunner 55 software version 5.06 Beta

as of April 19, 2022

Download (10.97 MB)

View installation instructions

Notes:


Change History

Changes made from version 4.11 to 5.06:

Changes made from version 4.02 to 4.10:

Changes made from version 3.03 to 4.00:

Changes made from version 2.09 to 3.02:


Installation Instructions

  1. Connect your Forerunner 55 to your computer using the USB cable.
  2. Download and unzip Forerunner55_506Beta.zip. Place the GUPDATE.GCD file in the \GARMIN folder of your device's internal storage drive.
  3. Disconnect your device from the computer, approve the update on the watch, and wait for the update to finish.
  4. From the RemoteSW folder, copy the GUP3925.gcd and GUP3926 files to the device's \Garmin\RemoteSW folder.
  5. Disconnect your device from the computer, approve the update on the watch, and wait for the update to finish.
  6. If you would like to revert to the last public release software, place the GUPDATE-411.GCD file in the \GARMIN folder. Rename GUPDATE-411.GCD to GUPDATE.GCD. Copy the GUP3925.GCD and GUP3926.GCD files from RemoteSW\Downgrades, place it in the device's \Garmin\RemoteSW folder. Disconnect the device to install. NOTE: If you revert to an older version of software, all of your settings will be reset to defaults.