So if you aren't getting the blue light then the iFocus is either off or not powering on. When you charge the iFocus what does the light on the unit do?
This might be a silly question but are you turning the iFocus motor on with the power button on the unit?
There are other types as the original is just called the iFocus. It has Bluetooth, carries its own charge, and also has a power button.
So, when you plug the Multi Can Cable into the iFocus M and the AirCross 2, nothing happens?
Have you had successful use of the iFocus M before now?
Yes, according to the manual, if the gimbal is on and the iFocus M is connected to the AirCross 2 through the Multi Can cable and port then the motor should be on. All the manual says about it being off is that it's just off and not connected. It says if there's errors then a light would be flashing.
You might have a dud and you should fill out a new support ticket especially if you just bought the gimbal recently. They'll need to get you a new iFocus M motor.