After Warranty Expires, Samsung 75-Inch 4K TV Has Black Marks and Shadows

Hello, On July 19, 2021, I had my UE75TU7100 75" Crystal 4K UHD TV installed. After the warranty expired on October 15, 2023, black marks and shadows appeared on the screen, which have since increased. They informed me that a service request had been submitted and that the service would be charged. ...
















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