Hi everybody! Got my brand new Phantom (not Vision) three weeks ago, the TX unit came with the gimbal slider already installed on the back. Everything went fine, done a couple of successful flights. I thought a Zenmuse gimbal would be a nice bonus added in order to get more stable videos. Found one on eBay, owner claiming it's a brand new factory gimbal. It shipped fast. Everything looks fine, the box has every component as advertised (small suspicion of being a fake, the motors top surface has no swiss made maxon motors engraved). However my problem started after I have opened the Phantom, the MC is a Naza V2 yellow one and wiring/soldering is different from the DJI Tutorial video. I have soldered the Zenmuse unit to the main board as shown in the video, connected the 8 pin cable, but of course, I do not have any additional upgrade Naza PMU to connect to the main board and to the gimbal unit. I have seen some articles telling that users with Naza V2 (yellow) MC do not need any other additional PMU to connect with the gimbal. Of course, the gimbal is not working (tilting, etc), I have installed the zenmuse assistant software, latest driver, installed the latest upgrade to Naza Assistant, I get a nasty 27 ERR (gps and compass calibration) and the yellow led is blinking (RC not connected, probably). Please help me, do I need that PMU V2 controller?