That's precisely it! The same exact issue! I also bought mine in 2017 too. Feeling kind of disappointed I'd have to spend a fortune to have it repaired or essentially buy a new TV to fix it. Samsung should be doing more to help people who have this issue because this TV was not cheap, and I'm really mad I only got barely 3 years of use out of mine before this happened. Don't know if I'll ever buy a Samsung TV again.
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My Samsung 4K TV, model UN40KU7000 recently had a white or bright spot appear in the bottom right corner of the screen. I tried to self-diagnose the issue using the tv menu, and updated the TV's software to no avail. The spot will not go away. This is nothing that I did to the TV, I have to imagine it's a defect with this model. Is there anything you can do to help me? If you need any further information about the TV please let me know. I'm typically very satisfied with Samsung TVs and have never had this issue before, so I'm greatly disappointed. Especially since this tv was not cheap, and it's only a few years old.
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