I have had the Amplifi 150 for 3 days and played with it out of the box for 10 min. when I realized that I needed to update the amp to use my Android device before it would work with full function. Should have read this forum before purchasing!! All the LINE 6 folks can say is to try another cable or another USB port or another PC. 3 cables 8 USB ports 3 PCs later... I still can not use this $499 paper weight! And their trick on getting it back to factory settings, with the tone and volume, will not work either!! I have used Win 10, 8 ,7 and still in the same spot!!