2, another way to open the door, is to use the safe's external power supply (buy a safe inside a small square box, one end of the end of the plug end) plugged directly into the safe panel digital keys below a small jack, outside the external power supply loaded with new batteries, and then the normal go to the input code, open the key on the can be opened, and then the battery in the external power supply and then installed as the battery box at the back of the safe panel.
3, call the safe manufacturer's after-sales service phone, by the professionals to deal with.