[Sylvester]

mmdooley, i myself had a problem with this! Are you using a UBEC, if you are , dont forget to unplug the black jumper, located a bit under the red one. Once you are done that , turn on your radio, than plug in the batts to the esc, (sparks are normal, i get them too!). Now, once you hear the first beep, right after HOLD full throttle till you hear the next one, RIGHT AFTER YOU HEAR THE BEEP, QUICKLY put it into reverse, you should hear a double beep after. For me i had the same problem (using a spektrum DX3) but i found out its all about the timing of when you hit the throttle(holding it until you hear the beep)