The ETH03 firmware is NOT the same as the UCM firmware of the baseboard. The ETH03 firmware runs on the ETH03 submodule module and not the UCM.
The UCM Firmware is the firmware on the UCM Baseboard (marked by UCM 7.xxx label). UCM Firmware is upgraded by right clicking on the UCM in Modules and selecting \"Check for Upgrades\" see http://www.comfortforums.com/forum92/3400.html
ETH03 Firmware runs on the ETH03 submodule,
The \'Upgrade\' button is used to upgrade the ETH03 firmware on the submodule over the network. Firmware upgrades are available from the Cytech Technology website at https://www.cytech.biz/eth03_firmware.html
There are 3 zipped .hex files available
ETH03-General.hex is for UCM/ETH03
ETH03-client.hex is for UCM/Universal
ETH03-heatmiser is for UCM/Heatmiser (wifi)
After downloading the zip file and unzipping, select the ETH03-General firmware (.hex file).
It is advisable to check the website for the latest ETH03 firmware and upgrade the firmware before use.
In Comfigurator, go to Options > Settings > UCM Connections
Select UCM Interface= Network (Local)

Click on the link for Comfort Server Manager (in blue)

Note the ETH03 firmware version is in the window as highlighted (ETH03GE2.23)
(The CS Manager Software is on the bottom (Version 2.1.0). To Upgrade CS Manager software see http://www.comfortforums.com/forum113/3821.html )
Click on the Upgrade Button to upgrade ETH03 firmware
Browse to the folder containing the firmware hex file, eg ETH03General 1.12.hex

Press OK to start the upgrade

The progress of the upgrade is seen in the progress bar on the bottom right. The process may take less than a minute, and the status \"Success\" should be seen
The IP address of the UCM/ETH03 will be blank after the upgrade. Press Refresh to detect the IP address and the new firmware should be shown
The UCM Firmware is the firmware on the UCM Baseboard (marked by UCM 7.xxx label). UCM Firmware is upgraded by right clicking on the UCM in Modules and selecting \"Check for Upgrades\" see http://www.comfortforums.com/forum92/3400.html
ETH03 Firmware runs on the ETH03 submodule,
The \'Upgrade\' button is used to upgrade the ETH03 firmware on the submodule over the network. Firmware upgrades are available from the Cytech Technology website at https://www.cytech.biz/eth03_firmware.html
There are 3 zipped .hex files available
ETH03-General.hex is for UCM/ETH03
ETH03-client.hex is for UCM/Universal
ETH03-heatmiser is for UCM/Heatmiser (wifi)
After downloading the zip file and unzipping, select the ETH03-General firmware (.hex file).
It is advisable to check the website for the latest ETH03 firmware and upgrade the firmware before use.
In Comfigurator, go to Options > Settings > UCM Connections
Select UCM Interface= Network (Local)

Click on the link for Comfort Server Manager (in blue)

Note the ETH03 firmware version is in the window as highlighted (ETH03GE2.23)
(The CS Manager Software is on the bottom (Version 2.1.0). To Upgrade CS Manager software see http://www.comfortforums.com/forum113/3821.html )
Click on the Upgrade Button to upgrade ETH03 firmware
Browse to the folder containing the firmware hex file, eg ETH03General 1.12.hex

Press OK to start the upgrade

The progress of the upgrade is seen in the progress bar on the bottom right. The process may take less than a minute, and the status \"Success\" should be seen
The IP address of the UCM/ETH03 will be blank after the upgrade. Press Refresh to detect the IP address and the new firmware should be shown

