I have the same problem with my LE32B530. I have also been told that my guarantee will not cover this!
Although I know I went to the proper download page on the SAMSUNG website for my specific model television and got the appropriate firmware software, once I installed it onto my television and restarted..nothing happened. My television shut off, and now all that happens when I plug it in is the red light blinks on and off for a while. I honestly don't know what to do right now, the tv is a number of years old so a warranty replacement is probably out of the question.