I just started to have the same issue with my throttle quadrant a few days ago. I have also tried every suggestion listed in this forum. I might just sacrifice mine for the forum and open it up. I want to see if there is a cable from the USB board to the main Board. If there is I can check it out and see if maybe there is just a loose connection or something. I bought mine refurbished from Amazon back in October of 2021. So I really don’t think I have a warranty. But not sure. If I can’t fix it I might just buy another one. I will report back here if I can find a fix after taking it apart. Thanks for starting this topic.
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