Why won’t my ExpressLRS receiver bind to the transmitter?

Question: Why won’t my ExpressLRS receiver bind to the transmitter?

Answer: First, ensure both your receiver and transmitter are running compatible ExpressLRS firmware versions. Mismatched versions often cause binding failures. Power the receiver with a stable 5V supply and verify the receiver’s LED indicates it’s in bind mode (usually a blinking pattern). On the transmitter, enter bind mode through the LUA script or module settings. Keep the receiver and transmitter close together during binding, ideally within 1 metre. Check antenna connections on both devices; a loose or damaged antenna can prevent binding. Also, ensure you’re using the correct frequency band (2.4GHz or 900MHz) and that no other devices are interfering nearby. If binding still fails, try resetting the receiver by removing power and reinserting it while holding the bind button. Finally, consult the ExpressLRS documentation for your specific hardware, as some receivers require specific bind procedures or button presses. Following these steps should help you establish a reliable bind between your ExpressLRS receiver and transmitter.