Hold the power button on the TV while plugging it back into the power outlet.
Wait for the LED indicator to flash rapidly, indicating the update is in progress. : Using incorrect firmware for your specific panel ( Download MS338 PC821 Panel T550QVN02 Starlight part1 rar
: Sites like Softwarezone.ga and Hashmielecom often host archive files (RAR) for various panel configurations of the MS338 board. Hold the power button on the TV while
: If you successfully install the firmware but need to adjust settings, the service menu code for this board is typically Menu + 1147 . General USB Update Procedure Download MS338 PC821 Panel T550QVN02 Starlight part1 rar