Unlike with MS Windows with GNU/Linux operating system you don’t really have to manually install hardware drivers as most of them are automatically recognized and configured by the operating system (sometimes except for the ATI and Nvidia GPU drivers).
Let’s do it …
Steps Are ->
Step 1: First of all, make sure you’ve enabled Bluetooth on your device. If it’s a mobile phone, then you’ll have to manually enable it and also make sure it’s ‘visible’ (discover mode) to other devices. Because even if your device (phone) has Bluetooth enabled yet its ‘visibility’ is disabled, then Ubuntu won’t be able to detect it.
Step 2: Then locate that small Bluetooth icon on the top panel and click on it. Then from the menu that you get, click on that which says ‘Bluetooth Settings…’ (at the bottom).
This should open the default configuration window and you’ll see a button that lets you turn on/off Bluetooth as shown below. Now simply click and drag it to the right-side until it says ‘ON’ to turn it on.