Did you put the controle horn on while you had the servo on and trimed?. Also if you are using a tamiya esc then you need to set it. First press the red set button on the esc the red light should sart flashing. Press it again this will set the nutral trigger position next pull the trigger all the way down and press the red buton again, last push the trigger all the ay down on full brake/reverse and push the red button and the esc should be set. this should be the same as the intructions.So go grab the bag the esc came in and read the info. hope this helps