... continuous wrong password, the keypad will be locked for 3minutes,during this time, if you press the key, it will display EEEEEE ... Input the old Master Password, press #, display PASS1~9, press * during the display PASS1~9,display CODE, input your new Master ... ,in locking state, press 123456781234, → press #, →display PASS1~9, press * during the display PASS1~9,display CODE, →input new Master Password ...