LED Display LED steady on TX & RX link & ready LED 0.5S ON, 0.5S OFF continually Throttle in the Hi position (Motor will not activate). LED 0.25S ON, 0.25S OFF continually battery low TX LED LED 0.25S ON, 0.25S OFF continually battery low RX LED 4 Need move the Throttle stick to the lowest position, till LED steady ON then motor will activate.