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. Mismatched versions often prevent binding. Next, power up the receiver and put the transmitter into bind mode—this usually involves holding the bind button or selecting bind in the transmitter’s menu. Confirm the receiver’s LED indicates it’s in bind mode (often flashing). Check your wiring and antenna connections on the receiver; poor connections can block the bind process. Also, verify the correct UART is used for the receiver’s CRSF connection if applicable. If you’re using LUA scripts on the transmitter, make sure they are configured properly and the correct model profile is selected. Sometimes, resetting both devices and retrying helps. Finally, ensure no other transmitter nearby is using the same binding settings, which can cause conflicts. Following these steps should resolve most binding issues with ExpressLRS receivers.