Hi guys, I am new to this but I am desperate for help..
I have a UDI 818S drone which I have been enjoying right up to today. I had a bit of a rough landing and now one of the props will not stop spinning. All the other three operate perfectly well but the fourth spins at full speed as long as the battery is plugged in, even when the drone is switched off. I have searched around on the internet but can't find anyone with a similar problem, I'm sure it's a switch issue but I would appreciate some help with a diagnosis..