I know this is old thread,, but I just had my LT replaced cause the expression pedal broke. It came with 2.30 so I first used the supplied USB cable and tried on my surface windows 10. Would not see the LT no matter what I did. Went to my MAC EL capitan and same thing. would not communicate. I finally got fed up and ran downstairs and pulled out an old USB cable and WHAMMO!!! damn thing worked like a charm and 2,8,1,1 installed. I STRONGLY encourage a shorter USB cable