When the safe is opened, my safe has a key with a password on it. It says "undervoltage" and can't open it
You have an emergency power box over there, and the external power supply can be turned on. Or open with an emergency key... I don't know what your electronic panel is, right?
Hello, usually with a spare key to open, and then put on the battery, you can use the panel password.
1. The shorter one than the normal one is the emergency key.2, usually in the panel on the right side, uncover the emergency key cover plate3 insert emergency key to open4. Open with a normal key
