Hello all, I posted this in the Zenmuse forum but it was suggested I post it here. I have a Phantom 1. It flies well but I wanted to add the gimbal for better video (obvious, I know). When I ordered the gimbal it came with an upgraded board and a GCU-V1. Now, I've seen instructional videos and they're either installing the GCU and PMU(?), OR the upgraded board alone. So, I installed the upgrade board alone. The result is an H3-2D that hangs limp even though the power light goes on, the GoPro receive power and I can hear the mtors whiting soft in the gimbal. Below is the last message from the other thread... After discussing the issue with DJI I was told that since my NAZA has a red sticker on it, that means it's the original (older) NAZA and that, in addition to the upgrade board, to get the Zenmuse to work I need to add the GCU-V1 as well. I told the guy over the phone I was skeptical of that and he assured me that should solve the problem. But here's the problem, how do you hook up the GCU-V1 to the upgrade board in the Phantom? I've watched the videos of the Zenmuse install, both with the old board where you use the GCU-V1 and the other module (can't remember the name of it off the top of my head), and the one with the upgrade board where you don't have to add any modules. Nowhere have I ever seen instructions that show installing the upgrade board and the GCU-V1 together, Probably a good reason for that, there's nothing to plug it in to. You can solder in the power leads, you can run the AV cable to an FPV system, and you can run the G8 cable to the Zenmuse. What's left over is a USB port and a CAN-bus (that originally linked to the other module). There are no other CAN-bus ports. Not sure what to do next. I don't have another 50 minutes to sit on hold with DJI waiting for more "advice". And they totally ignore emails. I guess I'm just ranting because I've spent $1000 on a pile of plastic and wires. At least it still flys. I could take off the gimbal and GoPro and just fly it for the heck of it. But that's not what I bought it for.