To open your safe for the first time:
Install 4 AA batteries. (See instructions under “Electronic
lock”.)
http://www.sentrysafe.com/pdfs/OwnersManuals/IntBarracudal.pdf

Use select box at link below
http://www.sentrysafe.com/customerCare/OwnersManuals.aspx

Sir,

This can be open only with codes. So u please contact manufacturer to open the fireproof safe.

thanks
good luck

Dear,
check this link and hope it will help to cure the issue

http://www.fixya.com/support/t475343-sentry_model_1610_open

regards

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