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 flashed with the same ExpressLRS firmware version and compatible settings. Power the receiver correctly, usually 5V or 3.3V depending on the model, and check that the LED indicators show it is in bind mode (often a flashing light). On the transmitter, enter bind mode via the LUA script or module button. Make sure the receiver is close to the transmitter during binding, ideally within 1 metre. If binding fails, try resetting the receiver by powering it off and on while holding the bind button or shorting the bind pads. Confirm your antennas are properly connected and undamaged. Also, check for interference or strong RF signals nearby that might disrupt binding. Finally, consult the receiver’s manual for specific bind instructions, as some models require holding the bind button while powering on. Following these steps should resolve most binding issues with ExpressLRS receivers.