Why is my ExpressLRS receiver not binding 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. Mismatched versions often prevent binding. Next, confirm the receiver is powered correctly—use a regulated 5V supply or a LiPo battery as specified. When binding, put your transmitter into bind mode by holding the bind button or selecting bind in the Lua script, then power on the receiver while pressing its bind button or shorting the bind pads if applicable. The receiver’s LED should flash rapidly, indicating it’s in bind mode. Wait a few seconds for the LED to become solid, signalling a successful bind. If the LED keeps flashing, check your wiring and antenna connections—faulty or loose antennas can block the signal. Also, verify your receiver model matches the module installed in your transmitter. Finally, try resetting both devices and reattempt binding in an area with minimal radio interference. Following these steps should resolve most binding issues with ExpressLRS receivers.