Have access to a rare earth magnet? May be worth a try. Not sure it will work with your safe, but it is a possibility.
See the video by Mr. Locksmith:
https://www.youtube.com/watch?v=ApJQ2wcYjBo"Terry Whin-Yates from Mr. Locksmith demonstrated how easy it is to open a Sentry Electronic Safe is less than 5 seconds with no damage or “Signs of Entry” for the Kitsilano Business Leaders Meetup.
To purchase an excellent UL Listed Burgulary and Fire Resistant Safe for home or business that can not be opened in seconds visit Mr. Locksmith Safes."