Hello, Michael and welcome!
Thanks for your patience, as I see nobody answered your question earlier.
My sincerest condolences on the passing of your brother in law.
Are you sure that the combination you have is 100% correct? If not, you can get information about how to reset the master combination and/or the combination, itself, but you must provide the following information proving safe ownership to the company, first. Everything you need to know is at this Browning site:
If the safe is electronic, I suggest changing the batteries, as that might be the problem. If you don't know how to change the batteries, please ask me. If it is a manual dial, it should have a specific dialing sequence. If you don't have the owner's manual which should contain this information, you can call Browning Customer Service at ***-***-**** or***-***-**** or find the downloadable manual here, according to model type:
I hope you found this information helpful. If so, please let me know here and provide a positive rating.
If you need additional information, please do NOT rate negatively BEFORE clicking 'REPLY' and letting me know what I can still help you with. Thank you very much!