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Because "USB part1 .rar" suggests a multi-part archive, you generally need (Part 1, Part 2, etc.) in the same folder to extract the files successfully. Important Precautions

Power on the board. The indicator light should blink rapidly (red/green). Wait until the blinking stops or stays a solid color. Unplug the USB and restart the board.

It sounds like you’re looking for a specific or software driver package for the MV56U universal LCD/LED TV controller board.

Before flashing any firmware via USB, ensure the jumper on your board is set to the correct voltage for your screen (usually 3.3V, 5V, or 12V) to avoid permanent damage.