While you wait for answers, we may have found some information which could help you.
Click here for Mp3 Screen Blankmp3 turns on then off?
how can I format my mp3 player?
what to do when your sandisk sansa mp3 model m250 wont turn on?
how can i fix my sansa sandisk clip mp3 player?
how to fix my sansa?
my sansa sandisk 1GB mp3 player's screen went blank. how do i fix it?