I have bound my transmitter (DX4C) to the receiver (SRS4210) but it now has a flashing orange light on it. Throttle/brake and steering works fine, but I thought it was meant to turn to solid orange once it was bound? This is with the bind plugs taken out.

Also, my throttle/brake servo makes a weird highish pitch noise when it reaches the full extent of the brake. Is this normal due to the load on it or is there too much load on the servo? Its a hitech high voltage servo.

Thanks