hi my friend either deleted or moved or changed the suffixes on some files (e.g. .bin etc). it now says "file not found" and then "plug usb cable". i plugged itin and nothinghappens. the pc's device mgr pretends it does not exist. and when i start it in the sansa fw i can use the player but not the usb. it shows charging biut still not recognized. i switched the usb mode between "auto", "msc", and "mtp". nothing....
please help. thanx