phablet@ubuntu-phablet:~$ bluetoothctl
[NEW] Controller 00:A0:C6:87:2C:F3 Nexus 4 [default]
[bluetooth]# power on
Changing power on succeeded
[bluetooth]# scan devices
Invalid argument devices
[bluetooth]# scan
Missing on/off argument
[bluetooth]# scan on
Discovery started
[CHG] Controller 00:A0:C6:87:2C:F3 Discovering: yes
[NEW] Device BC:6A:29:AC:6C:26 SensorTag
[CHG] Device BC:6A:29:AC:6C:26 RSSI: -56
[bluetooth]# list
Controller 00:A0:C6:87:2C:F3 Nexus 4 [default]
[bluetooth]# version
Version 5.23
[bluetooth]# connect BC:6A:29:AC:6C:26
Attempting to connect to BC:6A:29:AC:6C:26
[CHG] Device BC:6A:29:AC:6C:26 Connected: yes
Connection successful
[CHG] Device BC:6A:29:AC:6C:26 UUIDs:
00001800-0000-1000-8000-00805f9b34fb
00001801-0000-1000-8000-00805f9b34fb
0000180a-0000-1000-8000-00805f9b34fb
0000ffe0-0000-1000-8000-00805f9b34fb
f000aa00-0451-4000-b000-000000000000
f000aa10-0451-4000-b000-000000000000
f000aa20-0451-4000-b000-000000000000
f000aa30-0451-4000-b000-000000000000
f000aa40-0451-4000-b000-000000000000
f000aa50-0451-4000-b000-000000000000
f000aa60-0451-4000-b000-000000000000
f000ccc0-0451-4000-b000-000000000000
f000ffc0-0451-4000-b000-000000000000
[CHG] Device BC:6A:29:AC:6C:26 Modalias: bluetooth:v000Dp0000d0110
[bluetooth]# devices
Device BC:6A:29:AC:6C:26 SensorTag