• Verify the bluetooth device is turned on
• Verify no device are currently available (which should be the case when the device was reset and no device discovery ever run)

[bluetooth]# devices
[bluetooth]#

• Start device discovery and make sure you have one or more discoverable bluetooth devices around

[bluetooth]# scan on
Discovery started
[CHG] Controller 30:30:3A:41:30:3A Discovering: yes
[NEW] Device BC:47:60:F5:4B:5C HS3000
[NEW] Device 4C:74:03:64:73:16 Aquaris E4.5

• Turn device discovery off and verify bluetoothctl correctly reports this

[bluetooth]# scan off
[CHG] Device 4C:74:03:64:73:16 RSSI is nil
[CHG] Device BC:47:60:F5:4B:5C RSSI is nil
Discovery stopped
[CHG] Controller 30:30:3A:41:30:3A Discovering: no

• Verify that all found devices are now listed

[bluetooth]# devices
Device BC:47:60:F5:4B:5C HS3000
Device 4C:74:03:64:73:16 Aquaris E4.5

• Power off bluetooth and verify all previously discovered devices are gone
• Power on bluetooth again and run discovery again. Previously discovered devices should be found again