Couple of questions
 

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

Your RX didn't bind if its flashing orange. Rebind RX by holding bind button in on the RX Till LED on RX has solid orange. It may take 30sec or more.

I posted another thread of DrPorter earlier in the day. He hasn't replied yet.

You may have to adjust EPA to quiet servos down, Just overextending the servos.

I was just reading on a site that the SRS4210 with the AVC blinks when AVC is turned off (Which it is) due to me joining a club that doesn't allow AVC. This could be the cause of the problem..

AVC Active Vehicle Control, Club says not to be used. AVC another word of Traction Control.