перезагрузка силу.
потом
dmesg | grep -i blue
rfkill list
[ 3.570803] Bluetooth: Core ver 2.16
[ 3.570823] Bluetooth: HCI device and connection manager initialized
[ 3.570831] Bluetooth: HCI socket layer initialized
[ 3.570834] Bluetooth: L2CAP socket layer initialized
[ 3.570839] Bluetooth: SCO socket layer initialized
[ 3.588421] Bluetooth: RFCOMM TTY layer initialized
[ 3.588429] Bluetooth: RFCOMM socket layer initialized
[ 3.588431] Bluetooth: RFCOMM ver 1.11
[ 3.618582] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 3.618586] Bluetooth: BNEP filters: protocol multicast
[ 3.618594] Bluetooth: BNEP socket layer initialized
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes