AR620 Problem
 

I went to fly one of my planes that has a AR620 receiver it. Using a DX6 G3 radio. The bind went find, then had no movement when moving the sticks. Double checked the battery, there good. I then plugged the battery direct to the receiver, no thing at the battery port, so I put in port 6, and binded it again, still nothing at the sticks. Then went to the radio and created a new model. Nothing. So a changed out the receiver and all good with that one. So I have a couple of new receivers that I ordered coming from Horizon. My question is there anything else that I could have done ? At least this didn't happen in the air.