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 can prevent binding. Next, confirm the receiver is powered correctly, typically 5V with a stable supply. Enter the transmitter’s bind mode by pressing the bind button or selecting bind in the LUA script. Then, power on the receiver while holding its bind button (if available) or with the bind pad shorted, depending on the model. The receiver’s LED should flash rapidly indicating it’s in bind mode. Wait a few seconds for the devices to pair; the LED should then display a solid or slow blink pattern confirming binding. If it doesn’t bind, check the antenna connections on both ends and ensure they are secure. Also, verify you’re using the correct receiver model in the transmitter’s LUA script. Finally, try reducing distance between transmitter and receiver during binding to avoid signal interference. Following these steps usually resolves binding issues with ExpressLRS gear.