Bluetooth not Working
Option One
Open your terminal
type these commands:
service bluetooth restart
Option two
Again open your terminal
sudo service bluetooth restart
On systemd systems:
sudo systemctl restart bluetooth
Then Reboot
Option three
I assumed that mere starting the service didn't get BT to work. While checking it's status it was active (running), but in the above line it printed disabled .
systemctl enable bluetooth.service
systemctl start bluetooth.service
Final Decision
Use a dongle or Blutooth Adapter