Simply sign-in to the companion app and you can change a variety of privacy and security settings on your AirBolt- including your back up button code.
To do so, once your AirBolt is connected, go to Lock Settings and scroll down to the Reset Button Code section and click Reset.
Once you are in the Reset Button Code Section: Enter your button code on the phone itself as per instructions. Click Save Passcode and Confirm.
To use button code: When your phone is not around or disconnected, you can enter the button code as you set it using the AirBolt buttons itself and it will unlock for you. NOTE: if your phone is connected to the AirBolt, simply pressing the left button will unlock it if you are in default security mode. To view different methods of unlocking the AirBolt see this page