FAQs
Why doesn't the factory code open the Marks lock?
The factory code is used to "initialize" the lock, i.e. restart the firmware and clear certain parts of memory. The code 9991234 is used to set the ID number and set the top level programming code called the "Great Grand Master" code. The factory code is not an unlock code, and was created to eliminate a "default" unlock code. The result is increased security as only the programmer has the uniquely created "Great Grand Master" code.