1. when input the password to open.if red, green light together, says the power shortage, electronic lock can still be open abov First, modify password:1. Modify master code: first press "0 0" button, and then press the door inside the red button, "du" "du" two sound, light yellow, into the coding state, then input 1-eight new password, and then press "*" button, at hear "du", "du" sound, yellow ...
