It was working fine yesterday.  Went to turn it on last night and nothing happened. Black screen. Would not charge when plugged in to either my computer or wall outlet. If I hold it up to the bright light I can faintly see the song I had been listening to is still barely visible on the screen, but I can't get it to turn on, off, or charge. First I thought something might have happened to my cord, but I have 2 and neither one works. Nothing happens! Help please!