You insert your Bluetooth® adapter into a USB port on your computer, but the adapter is not recognized by your computer.
Command from MATLAB
No Bluetooth adapter found. Please connect a Bluetooth adapter and ensure that Bluetooth is turned on.
Reinsert the adapter into other types of USB ports, such as USB 1.0 and USB 2.0, and then turn-on the Bluetooth on the Linux computer. At the MATLAB prompt, type the following command again, and see if the scan process has started.