Update- I was able to flash with the DFU file, and execute simple programs. I still have not been able to set the MAC address with the same symptom that I posted in the previous message's screengrab.
Any suggestions?
Thanks
Have you ever installed the v4.3 framework ? - Because im getting thet error if im using the tool from 4.3 to set mac adresse on a board with 4.2. Use the tool from 4.2 to set the mac address and it should work