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I have a sentry S3877 model. I lost the code a have obtained the factory default code. How do I change the default code to my own personel code?

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Posted on Jan 02, 2017

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SOURCE: Changing the code on my Sentry Safe S3877

how to change the on sentry safe s3877

Posted on Jan 20, 2009

SOURCE: somehow can open my sentry s3877 with the keypad.

A Safe and Vault Tech Will confirm that once you change the batteries the user code will erase and you will now have to enter the factory default that is in the owners manual and then use the programing instructions to program a new user code.

Posted on Aug 08, 2010

goldbill
  • 184 Answers

SOURCE: Need the factory code for sentry safe model s3877

the only way into my 5073 model was to drill a small hole 4 inches up and 10 inches from the right edge. then curve a small wire round the size of a fifty cent piece. Inside the safe is a spring loaded lock that this will depress. Presto-

After having done that, the will be inside.

The key is located under the round medallion on the front. It pops off and a round style key fits in there. If it is a brinks, they will send you one.

Posted on Dec 07, 2011

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1 Answer

How do I open a sentry s3877 safe when the battery is dead and safe is closed


The factory code combination to your electronic lock will remain in the memory of the unit - even if the batteries go dead. Any use programmed codes will be lost if the batteries lose power. The Sentry programmed factory code is always your default code.

If you do not know your factory code, you can follow this link for your combination retrieval:

http://www.sentrysafeshop.com/Lost-Combination-Sentry-Safe-Combination-p/lost%20combination.htm

Sep 23, 2012 | Sentry Fireproof Safe

1 Answer

Lost factory code for sentry safe model #d8W5840


did you ever find the factory code? I lost mine also. if you have the factory code for this model please message me on facebook.com/vernhartjr

Sep 09, 2012 | Sentry Safe Sentry Fire-Safe Combination...

1 Answer

Need the factory code for sentry safe model s3877


the only way into my 5073 model was to drill a small hole 4 inches up and 10 inches from the right edge. then curve a small wire round the size of a fifty cent piece. Inside the safe is a spring loaded lock that this will depress. Presto-

After having done that, the will be inside.

The key is located under the round medallion on the front. It pops off and a round style key fits in there. If it is a brinks, they will send you one.

Nov 19, 2011 | Sentry Fireproof Safe

1 Answer

We have a S3877 Sentry safe. The battery appears dead so I can't use the code. I also have the key but since the battery is dead it is no help. What can I do?


The factory code combination to your electronic lock will remain in the memory of the unit - even if the batteries go dead. Any use programmed codes will be lost if the batteries lose power. The Sentry programmed factory code is always your default code.

If you do not know your factory code, you can follow this link for your combination retrieval:

http://www.sentrysafeshop.com/Lost-Combination-Sentry-Safe-Combination-p/lost%20combination.htm

Dec 07, 2010 | Sentry Fireproof Safe

1 Answer

Need factory code for Sentry Safe Model 1610 - know its 5 digits but cant remember - never changed it from factory code but cant find the darn owners manual!


If you need your lost combination, you must send a notarized letter stating you are the owner of the safe. The link below will tell you everything that you will need to get your combination back:

http://www.sentrysafeshop.com/Lost-Combination-Sentry-Safe-Combination-p/lost%20combination.htm

Jun 13, 2010 | Sentry Fireproof Safe

1 Answer

Somehow can open my sentry s3877 with the keypad.


A Safe and Vault Tech Will confirm that once you change the batteries the user code will erase and you will now have to enter the factory default that is in the owners manual and then use the programing instructions to program a new user code.

Jan 07, 2010 | Sentry Fireproof Safe

2 Answers

Sentry safe, enter codes and nothing


Motorola IC #MC68HRC705 will not reset. Chip is most likely bad. Time to throw this safe out...Thanks for your answers. George

Mar 25, 2009 | Sentry Fireproof Safe

1 Answer

I lost the combination to the s3877


goto SentrySafe.com and request a combination to be send to you.
you need the model and the serial number from the box.

Nov 17, 2008 | Sentry Fireproof Safe

2 Answers

Changing the code on my Sentry Safe S3877


how to change the on sentry safe s3877

Sep 29, 2008 | Sentry Fireproof Safe

2 Answers

Sentry s3877 battery compartment broke


I had the same problem with my Sentry S3877. I found the exact 4-battery replacement (with snap attachment on top!) at an online electronics.retailer, but had to purchase a lot of three. I don't need the other two, so I'll sell them for just $6 each to the first two folks to contact me mark@irregardless.net.

Oh, by the way, once the batteries went dead, you lost your combination! When you pop the new battery compartment in, the factory default combination will be in effect. That default combination is in your user's manual. I'm currently searching frantically for mine! Gee, how could I have misplaced it ... I just had it in my hands when I purchased the safe 10 years ago !!!

Anyone know the default combo for the S3877?

---- Mark

Sep 15, 2008 | Sentry Fireproof Safe

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