I received a H4-3D gimbal which I know might have issues. I tried connecting it without a camera and it doesn't do anything (tried on two Phantom 2's). The LED comes on indicating that it is receiving power but there is no gimbal movement.

This is without a GoPro camera plugged in though. I'm wondering if it's normal for the gimbal to do nothing if there is no GoPro attached. Do I need to put a camera on to be able to properly test the gimbal?

You are not supposed to run the gimbal without the camera attached

I. P. Freely Posted at 2015-5-11 09:40
You are not supposed to run the gimbal without the camera attached

I know. But was just trying to test it to see if it even works. Anyway, I attached the camera and the thing still doesn't work.

Anyone ever send a H4-3D to DJI for repair? How long did it take? Was it covered under warranty or did they charge you?

Bro you don't understand. its not like "Oh hey by the way you shouldn't turn the gimbal on without the camera cus its bad." Its more like "Never ever power your Zenmuse on without at least SOME weight inside of it because it will overload itself trying to compensate for the nothingness inside of it. By turning it on to test it if there wasn't anything wrong with it before then there is now.

Try running the zenmuse cable directly to the H4-3D. Theres a possibility your Anti-interference board maybe faulty.