Not sure where to ask this question but we are trying to update my my friends vu+duo but his box doesn't recognise his usb stick in any of his ports.We have tried 2 usb stick,ones brand new and we have formatted them also.the computer recognises the usb's as soon as you plug into laptop so we are assumung that the usb's are ok.I have flashed my box with no probs at all.Is there anyway that the usb ports coulds be switched off?