I have a rather complex heli setup using my R6208SB receiver. That heli is temporarily inoperative so I tried to move the RX to another model for testing. I created a new profile on the transmitter and the RX will not bind under this new profile. I can select the old model in the TX, and the RX connects beautifully. But the new model will not allow me to bind.

Is this some kind of a safety restriction? Surely it is conceivable that you may need to move a RX from one model to another?

I do not want to have to delete the model profile. If I get a small SD card, ( I only have a 4Gb at the moment) will I be able to save the profile to the SD for later use?