I tried every conceivable fix. Those on this site and many others. I buggered around for just about two days. Then I read a tip on some website - can’t remember where. It said I must insert a MicroSD card in the external memory card slot and switch on the Sansa. I have the 1 gig model.
I used my Nokia mobile phone memory card which had other stuff on. It worked first time !!! Sansa back from death and still working without any problems. Even after I removed the card. Unbelievable but true !!!
So simple, when you think about all the high tech solutions that everyboby suggests. I also did the latest firmware update without problems after the card trick.
I use the Sansa on my home theatre for music playback, still the greatest MP3 for that for me
Sandisk, where are you in all of this ??? Surely you should read all these posts and come up with advice ???