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 transmitter and receiver are running compatible ExpressLRS firmware versions and are set to the same frequency and binding mode. Power on the receiver and transmitter, then put the transmitter into bind mode (usually via the LUA script or module button). The receiver should enter bind mode automatically on power-up or when a bind button is pressed, depending on the model. Check the LED on the receiver: a flashing light often means it’s waiting to bind, while a solid light usually indicates successful binding. If it doesn’t bind, try these steps: 1) Double-check antenna connections and ensure antennas are not damaged. 2) Confirm the receiver is powered with the correct voltage (usually 5 V or 3.3 V). 3) Hold the receiver close (within a metre) to the transmitter module to avoid signal loss during binding. 4) Restart both devices and attempt binding again. 5) If you use an ExpressLRS module on a radio, verify it’s properly seated. Following these steps should resolve most binding issues.