I was trying to change the default bluetooth name for my new installation of Ubuntu (it comes with ubuntu-0) pretty ugly and not at all descriptive. So I needed to change it but even though it should be just easy as click on the top bluetooth icon and configuration. But at this moment you can’t so I found a solution that worked for me.
To do that you just need to create a file called machine-info into the /etc directory and set the property PRETTY_HOSTNAME.
Open the new file or edit it if it exists
sudo nano /etc/machine-info
Copy this into the file
Save it with CTRL + X and Yes.
Now just restart the bluetooth service
sudo service bluetooth restart
I found this at: How to change bluetooth device name?. I just shortened up! 🙂