Blue Stains Appeared on Samsung 65S90D OLED Panel After Gentle Cleaning

On 09/04/2025, I purchased a 65S90D model OLED television from the Samsung online store and had it installed in a TV unit. While mounting it on the wall using a wall bracket, I gently wiped handprints from the panel with a soft, clean, high-quality microfiber cloth, exactly as instructed in the TV’s...



















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