... then press the door inside the red button, "du" "du" two sound, light yellow, into the coding ... , and then press "*" button, at hear "du", "du" sound, yellow lights, this password will automatically ... new password, then click "*" button, hear "du" "du" confirming sound, yellow lights turn off, the password ... click "#" button, the correct password, buzzer "du" "du" ring two sound, a green light, into ...
