More than likely the servos are sucking too much power and causing the Nano to reset.
See: http://rcarduino.blogspot.com/2012/04/servo-problems-with-arduino-part-1.html
More than likely the servos are sucking too much power and causing the Nano to reset.
See: http://rcarduino.blogspot.com/2012/04/servo-problems-with-arduino-part-1.html