it's in the gtb instructions.
www.teamnovak.com
in summary.
set throttle trim to neutral on your remote. Set throttle epa/atv to full. 100%
Turn radio on.
hold the set button down with the esc off and a battery plugged in.
While holding set button turn esc on
continue holding set button.
until the led's change state (don't know exactly what color but I think solid red)
hold throttle all the way open hold until leds change state (I think green now)
Then push to full brake (Led starts flashing green)
then let it sit there and do it's cycling thing (a few seconds)
then test it.