You may need to physically remove the EMMC IC and reprogram it using a specialized programmer.
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When updating the TPDRT2841PB772 firmware, it is essential to take precautions to avoid any issues: You may need to physically remove the EMMC
: Unplug the TV, hold down the physical power button on the TV, and plug it back in while continuing to hold the button. Release once the upgrade notification appears. Important Precautions tpdrt2841pb772 firmware 2021
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