I know this seems like kind of a silly question but is it connected directly into a USB 2.0? The reason I ask is, that on mine, I cannot connect to my Dell XPS16 through a cooling pad's pass through usb. It will charge the phone, but will not recognize it as a disk drive. No matter what I have selected on the phone. And just for some further specifics, it is an older USB cable and not the one that came with the phone. I have yet to open that up yet.