I made a tri-copter a few years back following David's tutorials on Flite test and setup the KK2 board using the video on his channel. However, neither video goes into detail about how to connect the ESCs to the flight controller board. I've read that in order to provide power to the board, I need to connect the ESC of my M1 to my power source and then to the board (three-way connection). Unfortunately, this does not seem to provide power to my servo in M4. The other method that I tried and that I think I had when I first made this tri-copter was to connect a spliced wire from the power source to M1 and to M7, then have the motors 1, 2, and 3, and the servo in M2, M3, M3, M4, respectively. I'm not sure if that is what I used on the past but it did work at one point and the servo got power. The reason why I am not using that method now is that the servo seems to just continuously turn in one direction once it receives power. As of right now, I have the ESC for my motor 1 connected to my power source and to M1, but as I said earlier, the servo does not appear to get power. Does anyone know how to fix this problem? Let me know if you want a photo or anything.