Hello everyone, I have 2 problems: 1.I just started to build a x8 with KDE5215 and Kde 75A esc with mikrokopter 2.5. the issue started when i tried to lift up with movi m15 empty and you can hear the sound. First is the maiden and the copter has only the 2 batteries( the box under is empty). The second movie is with weird sound. 2. If anyone have KDE 5215 and not only do you look at the motor windings and it looks ok ? because i order 10 pcs 5215 an all looks the same. I want to know if this kind of problems are normal in KDE production. This is not normal because is a premium product.