Receiving characteristic notification with Bluetooth disabled?

[skydiver]

Hi, I am currently trying to receive a characteristic notification using an Android device which is connected to a ble beacon with the nRF52832 microcontroller. It works fine. I established the connection and run it in a service.

But if I turn bluetooth off, I still get the notification. How could that happen? Why do I receive notifications without bluetooth on?

[endnode]

If it is shortly (within few seconds) after BT disabling then probably your fancy Android device doesn't process interface shutdown very quickly. If this happens randomly and long time after BT should be off then you are observing miracle;) In the end radio sniffer knows always the truth, there either is on-air link and packets going (and then you have bug in your Android masterpiece) or there isn't (and then you again have some strange bug/ghost in the Android masterpiece;).