My advise is to take the time to find the issue, be reassured that in the unlikely event that your board be defective (all boards are tested in the factory) I will refund you or give you a new one.
No that we have no time constaints, I have just tried again the method 1 ULTRA++ installation guide
After installing the script and rebooted have you selected the audio device on the desktop as shown in the picture in the link above, and run the test command?
If you can select the audio device the board is detected.