The best way to solve this would be to contact Samsung's customer service center in your region. They would be able to assist with diagnosing and, if necessary, repairing your set.
I went to update the firmware of my TV to version 1009 (my TV had version 1001).
The entire process was completed 100% after reboot it she got the black screen. Sound, menus, everything works, but without images.
Even going back to previous version the problem persists.
How can do to solve this problem?