Binding HK t6A V2

HI.
Can someone assist me to bind my TX and Rx?
I have an HK-T6A V2 TX and HK-TR6A V2 RX. I plug the bind plug into a channel on the RX, add battery and 1 or 2 servos. I plug in the battery into the RX and the red light flashes quickly. I turn on the TX after I push the bind button. the blinking red light on the RX goes solid and I remove the bind plug from the RX. I turn off the RX and TX. then I turn on the TX and RX and nothing. Servos don't move. What am I doing wrong?
I haven't done anything to set the TX up to a computer for progamming. Is that required?

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