right, once the led shows red press and hold the trigger, it will then flash say 15 times (just a figure i typed in) once it stops flashing tap the trigger quickly 13 times. once this has been done the led will cycle thru all the colours. then turn dip switch 2 off and then tthe marker. Turn it back on and all will be well.
the 13 times is because the dwell minimum is 5