ELRS receiver is bound, the receiver's LED light flashes rapidly three times and cannot be used.

The receiver's LED flashing continuously three times indicates that the receiver and the RF module have successfully bound, but the Model Match does not align

1. Please connect the receiver to the remote controller and ensure the receiver has a good signal.

2. Open the ExpressLRS lua script in the remote controller.

3. Find the Model Match option:

   (1) If the Model Match option is shown as ON, please change it to OFF and save.

   (2) If the Model Match option is shown as OFF, please change it to ON, save it, then change it back to OFF and save."

For more information about Model Match, please refer to the official introduction by ELRS

https://www.expresslrs.org/software/model-config-match/