I made the mistake of upgrading my LN52B550K1F to the newest 1021.1 firmware (from 1016.1). Unfortunately, it broke compatibility with one of my workstations on the VGA input (Sun Ultra1). It worked perfectly fine before the update, but now tells me "mode not supported." I got nowhere with Samsung in regards to this.
Does anybody have a copy of the older firmware that they could provide me with? I am unable to find this on the website, and Samsung basically told me I'm screwed.
Any help is greatly appreciated! Thanks!
EDIT: Looks like the newer firmware also messed up my backlight settings. I have the backlight for my PC's HDMI input set at 7, yet it defaults to 10 when I turn the TV on. When I go into the menu, it still shows 7 even though it is at level 10. I then either have to readjust it in the menu or switch to another input and back to get the backlight correct. How annoying.
EDIT2: Okay, found a solution to the backlight issue. I had to switch that input back to non-PC mode, and set the backlight to 7. Once I did that, I switched back to PC mode. Now it powers on correctly with the backlight at 7. Apparently when the TV powers on, it sets the backlight to what i would've been in non-PC mode, even though I have the input set to PC mode. Weird firmware bug for sure.