Wait until the blinking stops or the TV restarts automatically. Post-Flash:

The is a common universal three-in-one LED TV motherboard used in various 32-inch to 42-inch models, supporting a standard resolution of 1366x768 . Firmware Details & Source

Press and hold the button on the TV panel (not the remote).

Specialized repair sites like Dip Electronics LAB or Alibaba/AliExpress product pages sometimes provide software links to buyers for resolution matching. Installation Guide (Write-up)

Copy the firmware file (often named allupgrade_ms.bin or similar) to the root directory of the USB drive. Turn off the TV and unplug the power cord. Insert the USB drive into the TV's USB port.

Flashing a "dump" file (usually an .bin or .img file inside the .rar ) requires a USB drive or a dedicated programmer (like an RT809F/H). Format a USB flash drive (FAT32 filesystem). Extract the contents of the downloaded .rar file.

Technical Telegram channels like hashmielecom often host archived .rar dump files for universal Chinese motherboards.

While holding the button, plug the TV back into the power outlet.

Download R83 819 1366x768 XINFEI Dump rar

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