However, I don’t see this as the phone’s fault, the ADC system should only change the alarm state when crossing a geofence boundary anyway. Ideally, what I’d really love is that when I take the phone out of “sleep” mode (an android capability), that is when it should auto-disarm the alarm.
The auto-disarming using your phone location is not using a geofence, it is bluetooth disarming using the bluetooth connection of the phone and panel.
If you have bluetooth disarming enabled on the panel, your phone’s bluetooth connection reconnecting to the panel will automatically disarm it from away.
This is intended for the purpose of returning from being away from the home, and if you arm away at night it is not recommended to use bluetooth disarming.
The issue is that the panel cannot tell why your phone reconnected to bluetooth. Your phone rebooting, applying an update, or bluetooth being interrupted for any other reason just looks like your phone is reconnecting from being away.
To stop this behavior you’ll want to disable bluetooth disarming. You can either delete your phones from the panel as a bluetooth device or change its setting to disable disarming automatically.