sansa clip

my sons clip is frozen on sandisk screen and when pluged into my computer get error that device is unrecognised or has malfunctioned any ideas

1.  Try a reset:  on switch in uppermost position for 15-20 seconds.

2.  Try connecting the Clip to your computer in MSC mode (Settings/USB/MSC); if you don’t have that option, force an MSC connection by putting the Clip into hold and then press the center button down while connecting the Clip to your computer (and then upgrade your firmware–sticky thread above–and set the USB mode to MSC).

I hope one or the other helps.