I checked the voltage coming from the four esc's and all gave me the same value, 0V!!! So I think I have a big problem here. I checked the specification of the esc and it says that it doesn't have BEC, this is in charge of giving me the 5V, right?? But I think I hace a solution, in my power distribution board I have and extra 5V out, where I can weld a cable which I can connect to the cc3d in one of the connectors for the esc, and then connect normally my four esc(only the signal cable). You think this will work???