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 ExpressLRS transmitter and receiver are running compatible firmware versions. Check that binding mode is properly activated on the receiver—usually by powering it up while holding the bind button or via a dedicated bind pad. Confirm your transmitter is set to bind mode as well. Next, verify the receiver is receiving power within the correct voltage range (typically 5V) and that the antenna is securely connected. Keep the transmitter and receiver close (within 1 metre) during binding to avoid signal issues. If binding still fails, try re-flashing the firmware on both devices using the ExpressLRS Configurator, ensuring you select the correct hardware targets. Also, check for any hardware faults such as damaged antennas or wiring issues. Finally, confirm your transmitter module is properly seated and enabled in your radio’s settings. Following these steps should resolve most binding problems with ExpressLRS receivers.