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 cause binding failures. Next, check that your receiver is in bind mode—usually indicated by a flashing LED. To enter bind mode, press the bind button on the receiver while powering it on, or follow your specific receiver’s instructions. On the transmitter, select the correct model and start the bind process through the ExpressLRS LUA script or module interface. Keep the receiver within 1–2 metres of the transmitter during binding for a strong signal. Also, confirm your receiver’s CRSF (Crossfire) or ELRS protocol settings match those on the transmitter. If your receiver has a failsafe or bind jumper, verify it’s set correctly. Finally, power cycle both devices and try binding again. If problems persist, re-flash the firmware on both units, ensuring you use the correct build for your hardware. Following these steps methodically usually resolves binding issues quickly.
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