How to use passcode to unlock the Sifely Y Gun Safe? Josh December 10, 2021 18:55 Updated Question How to use passcode to unlock? Answer Enter your passcode followed by # on the keypad to unlock. Related articles How to reset the Sifely Gun Safe? All you need to know about passcodes Permission Levels How to factory reset the Sifely S Smart Lock? Why does my Sifely Deadbolt keypad not work, but my app does? Comments 0 comments Please sign in to leave a comment.