Hi, thanks for your reply. I am using 11.3.0. How can I upgrade it? Should I reflash onto the same SD card or a new SD card? Can I use the same licence I bought? I don't know how the licence system works.
I cannot see those audio settings under that area, maybe they are there on the updated OS version only? The audio from the monitor's headphone jack is fine, but the monitor has speakers built in, but I can't figure out how to get the audio to play from the monitor's built in speakers.
Anyway, please let me know about the best method to update the O/S version (I tried look for updates - but no updates were found).