I have a Lisong 1.5" Mp4 player and just recently the audio stopped working in every mode, Music, FM, AMV (the video plays fine). I have tried 2 headphones, and no the volume is not zero. I have only used this player for a week. Am I missing a setting, is the player dead, or can this be fixed using a firmware update. Please help if you can. Here is what it looks like: