Here are the steps to properly update firmware on the AI controller.
Use a Windows computer(the process is not Mac compatible)
•Unplug Controller from Modules
•Using a mini-USB cable connect one end into PC
•While pressing and holding the controller knob down, connect to the USB cable
•At this point, the Controller display should say “AquaIllumination Firmware Update" – the PC should also notify you that a a flash drive is connected.
•Open the flash drive and delete the file named ‘firmware.bin’
•Now, drag the new firmware.bin file into the flash drive
•Once it has copied, you may disconnect the controller from the PC
Sometimes Windows takes 5-10 minutes to recognize the controller as a flash drive after it is connected to the computer and the display shows “AquaIllumination Firmware Update"