Version 23 - February 2019
To install: Transfer the file to a USB memory stick. Insert the stick in the outdoor panel, indoor control panel, or wireless control panel. A USB icon should appear on the top row indicating that your memory stick was recognized by the system.
Next navigate to Settings \ Advanced System Configuration \ System \ Firmware Update then choose Update from USB and select the update file you copied on the memory stick. The system will prompt you to remove the memory stick once the process is done.