There are two required steps to updating the firmware on these units. 

The first would be via the Web UI (accessed by entering the IP address of the unit into a browser) to update the network module version.

The second portion would be the MCU (Host FW) update on the unit itself. Use the front panel menu navigation to “Check For Update” in the Store/Load/Update section.

In order to confirm the latest version, please refer to the downloads section of our website for your applicable model as this is where we post our firmware change log.