Hi, like everybody else I have the same problem on my 55" Samsung tv but I've been a bit luckier than most and got 2years 6 months before the screen started to go dark at the bottom of the screen. Even with the highest brightness, contrast and sharpness, the bottom third of the screen is hardly visible. I have been in touch with Samsung and I'm waiting for a call back, but I won't be holding my breathe to get a costless result. I'm just glad that I read the complaints in this forum as I was just about to purchase a new Samsung tv. I think it's a disgrace that a fault which is known to Samsung, hasn't been rectified. This is a common fault which, after digging deeper, has been known for quite a few years. I personnaly don't think that it is just a question of changing an LED on the backlight. I mean after reading the rest of the complaints, the fault was mostly repaired by changing the screen. So I don't think a Samsung engineer would change a part costing hundreds of pounds when a fix could be done for a few pounds, unless the tv is out of warrantee. Anyway I'm now be looking for a new 55" tv. Any suggestions anybody?
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Hello PaulRG please read the response i just gave to Salz51 there was nothing obviously loose, it would have been hard to spot anyway. but i still opened everything (almost everything) and re-connected it and made sure they are tight. i am no expert but as they say "I did it my was". i don't think it is HDMI issue. good luck, let me know if it worked
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