https://devzone.nordicsemi.com/f/nordic-q-a/18648/pc-ble-driver-py-failed-to-open-with-error-code-13Hi all, I wrote a small python script on top of the pc ble driver bindings and ran into a problem when deploying the script on a new pc: c:\Python27\Scripts&gt;python.exe btle_test.py -aC7EEEFA85254 -t NRF51 Serial port used: COM46 Traceback (mosten-USTelligent Community 13Fri, 30 Dec 2016 21:47:29 GMThttps://devzone.nordicsemi.com/thread/72036?ContentTypeID=1Fri, 30 Dec 2016 21:47:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:047f88aa-61a2-4576-8d0d-31e8af4ea76cMartijn Vriens<p>Hi, I just got feedback that re-flashing the dongle with the suggested firmware solved the problem on the new pc. Thanks a lot for your support!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/72035?ContentTypeID=1Thu, 29 Dec 2016 09:57:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0f45a148-f6c3-48f6-814a-1c7f7e99920bHung Bui<p>Hi Martijn,</p> <p>Which hex file did you use for the dongle ?</p> <p>I see the same error code if I use connectivity_1.0.1_1m_with_s130_2.0.1.hex.</p> <p>The ble_driver_py by default use 115kbps as the UART baudrate, you should flash it with connectivity_1.0.1_115k2_with_s130_2.0.1.hex or let the python code flash the board it self (erase the dongle, then run the heart_rate_collector.py for example).</p><div style="clear:both;"></div>