I have a DX3.0, which I successfully have binded to an SR3000. However, I am now trying to bind to an SR3500, but am not getting the "bind" b/w the two. The Rx is blinking like it is in bind mode, however it is not picking up the Tx. Any help would be greatly appreciated.

Thanks

Sounds like a bad RX. I've run into this with a brand new DX3.0 and one of the RX's it came with. I even tried to bind it to my DX3R and still wouldn't work so took it back to the LHS I bought it from and they exchanged it for me. So I would suggest to take it back or send it to Horizon.