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 compatible ExpressLRS firmware versions. Mismatched versions often cause binding issues. Next, confirm the receiver is powered correctly—check your battery voltage and wiring. Put your transmitter into binding mode by holding the bind button or selecting 'bind' in the LUA script. Then, power on the receiver while holding its bind button (if it has one) or following the manual’s binding procedure. Watch for LED indicators on the receiver; typically, a flashing light means it’s waiting to bind, and a solid light means success. If it doesn’t bind, try moving closer to eliminate interference. Also, double-check antenna connections and orientation, as poor signal can prevent binding. Finally, reset both devices and try again, ensuring no other receivers are in bind mode nearby. Following these steps should resolve most binding problems.