Check your motor timing is not backwards. Still doesn't work get a new $90 fantom or reedy. If your esc doesn't have blinkyvget a $50 just-stock. Never seen anyone race a castle so don't know it runs blinky
The Mamba Max Pro does have a blinky mode. I ended up selling it and get an RSX tho. Also sold the speed passion and bought a used tuned tekin gen3 17.5 and HOLY CRAP THIS THING IS FAST!