I'm sorry to hear that you're having problems with your television.
There is not a firmware update for that model of television, unfortunately. The warranty period has expired, and while you can have the television repaired, the warranty coverage will not cover the parts and labor.
Our tv will be 2 years old next month as we bought in June '07. We can't watch our tv at all now because it constantly turns off and on. We first had this problem several months ago and received no help when my husband called Samsung support. They told him to unplug the tv and plug it back in knowing this would do no good as I now see this is a huge problem with many of their models. We of course now have expired warranty so we are not their problem. I need to know the correct firmware download for our model(if one exist) to see if this will help. Can you help me with this please.
Model TFT LCD LN-S4041D