Original firmware is according to model year of build on revision sets with firmware : and important the serial number it can happen there are modifications on marketing technical decision in one year of build.
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SOURCE: i updated my lcd samsung firm ware and the picture went crazy .
you need to go into the service menu and adjjust the option bytes. When you upgraged you changed them. The other solution would be to replace the main pcb
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what is the exact tv model? this a 2012 release, you can check the complete model code by going to tv menu-support-contact samsung
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