Hi. I am Rick and I will be your Computer Expert. I will do my best to assist you with your question.
There is only one way to get the facotry code for the safe. Call SentrySafe @ 1-800-828-1438. They may require you to send a notarized letter to their Linden Ave site in Rochester NY. They can send you the facotry code that will allow you to reset your own combination. That is the only way you will be able to reprogram it.