Are you holding the set button down with a thin stick ( that part makes me laugh) before turning the ESC on? (set button is the right side of the two holes).

When the the LED turns green release the set button.
Push the trigger to full brake.
Press the set button and release. (its beeps two times)
Release the trigger to neutral.
Pull the trigger to full throttle.
Press the set button and release.... you will hear two beeps.
Release the trigger to neutral, press the set button.
You will hear 4 beeps.
Done.

If this does not work, reverse the throttle, repeat above.