Hi guys, hopefully can seek advices from you guys here regard com port and generic Bluetooth radio .
I am using Arduino Uno to run inertial sensor and Matlab to receive data by serial communication (Bluetooth dongle) .
(1) Error: code 10, Generic Bluetooth radio Status: This device cannot start.
At first, the status for this dongle was working well. But after a few time running, the status shows it cannot start. Tried to update my driver, software, unplug , restart my laptop, window update and even restore system it still the same.
Anyone deal with this before?
(2)“error using serial/fopen
Open failed: Port :com23 Is not available”
Initially, Matlab can recognize the com port 23 (Uno) and worked. But it can’t work after the first run.
To save my time for debugging the generic Bluetooth device , then I was trying to view data from Arduino IDE serial monitor, it can’t find com port 23 too!
Then, was unplug everything and closed both programs, restart it but it was still not working by saying com port 23 is not available. I try to search available port from device manager, it stated com port 23 (Arduino ) is working properly.
Problem only solved when I restart my laptop 
So I am begging anyone of you who experienced similar problem before for suggestion. I can’t be shut down my laptop every time after the first run.
Appreciate very much for any useful suggestion, thank you!