askubuntu.com/questions/787023/bluetooth-not-working-on-ubuntu-16-04-lts
* sudo nano /etc/bluetooth/main.conf
* Change #AutoEnable=false to AutoEnable=true (at the bottom of the file, by default)
* systemctl restart bluetooth
askubuntu.com/questions/787023/bluetooth-not-working-on-ubuntu-16-04-lts
* sudo nano /etc/bluetooth/main.conf
* Change #AutoEnable=false to AutoEnable=true (at the bottom of the file, by default)
* systemctl restart bluetooth