dmesg | grep Blue
hcitool dev
hciconfig -a
rfkill list
dpkg -l | grep blue

[ 43.607687] Bluetooth: Core ver 2.16
[ 43.607722] Bluetooth: HCI device and connection manager initialized
[ 43.607725] Bluetooth: HCI socket layer initialized
[ 43.607728] Bluetooth: L2CAP socket layer initialized
[ 43.607797] Bluetooth: SCO socket layer initialized
[ 43.611042] Bluetooth: RFCOMM TTY layer initialized
[ 43.611052] Bluetooth: RFCOMM socket layer initialized
[ 43.611055] Bluetooth: RFCOMM ver 1.11
[ 43.612528] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 43.612532] Bluetooth: BNEP filters: protocol multicastDevices:0: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no
1: acer-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: acer-threeg: Wireless WAN
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: noii blueman 1.22~bzr707-1ubuntu1 A Graphical bluetooth manager
ii bluetooth 4.96-0ubuntu4 Bluetooth support
ii bluez 4.96-0ubuntu4 Bluetooth tools and daemons
ii bluez-alsa 4.96-0ubuntu4 Bluetooth ALSA support
ii bluez-cups 4.96-0ubuntu4 Bluetooth printer driver for CUPS
ii bluez-gstreamer 4.96-0ubuntu4 Bluetooth GStreamer support
ii gir1.2-gnomebluetooth-1.0 3.2.0-0ubuntu2 Introspection data for GnomeBluetooth
ii gnome-bluetooth 3.2.0-0ubuntu2 GNOME Bluetooth tools
ii libbluetooth-dev 4.96-0ubuntu4 Development files for using the BlueZ Linux Bluetooth library
ii libbluetooth3 4.96-0ubuntu4 Library to use the BlueZ Linux Bluetooth stack
ii libgnome-bluetooth-dev 3.2.0-0ubuntu2 GNOME Bluetooth tools - support library development files
ii libgnome-bluetooth8 3.2.0-0ubuntu2 GNOME Bluetooth tools - support library
ii pulseaudio-module-bluetooth 1:1.0-0ubuntu3.1 Bluetooth module for PulseAudio sound serverhciconfig -ahciconfig -a
Devices:

sudo hciconfig hci0 reset
sudo hciconfig hci0 up
lsusb
hciconfig -a
dmesg | grep hci0

theomini@theomini:~$ sudo hciconfig hci0 reset
[sudo] password for theomini:
Can't get device info: No such device
theomini@theomini:~$ sudo hciconfig hci0 up
Can't get device info: No such device
theomini@theomini:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 12d1:1404 Huawei Technologies Co., Ltd.
Bus 002 Device 003: ID 0402:9665 ALi Corp.
Bus 002 Device 005: ID 0458:0007 KYE Systems Corp. (Mouse Systems)
theomini@theomini:~$ hciconfig -a
theomini@theomini:~$ dmesg | grep hci0
theomini@theomini:~$theomini@theomini:~$ sudo hciconfig hci0 reset
[sudo] password for theomini:
Can't get device info: No such device
sudo killall bluetoothd
sudo bluetoothd
hciconfig -a
dmesg | grep hci0

sudo service bluetooth restart

theomini@theomini:~$ sudo killall bluetoothd
[sudo] password for theomini:
theomini@theomini:~$ sudo bluetoothd
theomini@theomini:~$ hciconfig -a
theomini@theomini:~$ dmesg | grep hci0
theomini@theomini:~$theomini@theomini:~$ sudo service bluetooth restart
* Stopping bluetooth [ OK ]
* Starting bluetoothhciconfig -a
hcitool dev
dmesg | grep hci0

theomini@theomini:~$ hciconfig -a
hci0: Type: BR/EDR Bus: USB
BD Address: C4:46:19:B5:DA:92 ACL MTU: 1021:8 SCO MTU: 64:1
UP RUNNING PSCAN
RX bytes:17968 acl:187 sco:0 events:502 errors:0
TX bytes:6833 acl:192 sco:0 commands:290 errors:0
Features: 0xff 0xfe 0x8f 0xfe 0x9b 0xff 0x79 0x83
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF
Link mode: SLAVE ACCEPT
Name: 'theomini-0'
Class: 0x5a0100
Service Classes: Networking, Capturing, Object Transfer, Telephony
Device Class: Computer, Uncategorized
HCI Version: 2.1 (0x4) Revision: 0x535d
LMP Version: 2.1 (0x4) Subversion: 0x4277
Manufacturer: Broadcom Corporation (15)
theomini@theomini:~$ hcitool dev
Devices:
hci0 C4:46:19:B5:DA:92
theomini@theomini:~$ dmesg | grep hci0
theomini@theomini:~$hcitool scan

theomini@theomini:~$ hcitool scan
Scanning ...
38:EC:E4:89:71:A6 Theo noteobexpushd
obexftp
obxfs
gnome-user-share
obex-data-server
nautilus-sendto


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