TO verify, the the Latest WIU firmware is 1.1 and that is updated through the LuCi web interface via a computer (PC or MAC) using a web browser.
The TIU needs to be at firmware version 6.1 and that is updated through the Consumer loader on a PC.
The latest versions of the app will require these two devices to be at these firmware versions.
The DCS remote is upgraded separately using the consumer loader on a PC while connected to the TIU with a curly telephone cord. The APP and WIU do not require the DCS handheld remote to be a the latest version of firmware although it is still a good idea to do so.