Here is the binding procedure for the external TBS Crossfire receiver:
Note: Please make sure the setting in Betaflight is correct. If there is confusion about the setting, we suggest you flash the CLI that we shared on our website.
How To Bind:
1) Press and hold the bind button on the receiver and connect the drone with the battery. Green LED with fast flicker means entering the binding mode.
2) Choose "BIND" in the transmitter.
3) Binding is successful when the green LED is on.
4) Power on again, the green LED is on, which means the quad is functional.