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: Source + 03661 (or Source + 2020811). HD Resolution (768p) : Source + 03662 (or Source + 2020810).

: Once the screen displays "Upgrade Success," remove the USB drive and restart the TV. Essential Service Menu & Resolution Codes kkrv22819 software download best

: Insert the drive into the USB 1 port of the motherboard while the TV is unplugged. : Source + 03661 (or Source + 2020811)

: Place the software file (often named allupgrade_ms.bin or similar) into the root directory of the USB drive. follow this standard procedure:

To successfully update your firmware, follow this standard procedure: