It should work fine I believe. My 614E worked with no problem.
Therefore, assuming power is being given to the rx,
, then I would check the following:
1) Fasst rx setting is selected under "Receiver" within the Tx menu and leave your Tx on at this menu.
2) When you turn on the Rx it should start flashing green.
3) When/If you get a message on your Tx asking you about resetting any failsafe say "Yes/Accept".
Your Rx should bind and the LED should turn solid green.
What is yours doing?