... “B” again, the SET light off. When the OPEN light on, turn the knob in anti-clockwise to lock ... press “A”. When the OPEN light on, turn the knob in clockwise to open the safe.6) Change master code ( ... “B” again, the SET light off, when the OPEN light on, indicates the personal code has been changed. ... code, (factory setting:159) press “A”. When the OPEN light on, turn the knob in clockwise to open the ...