The is a common analog TV control board (often referred to as a "universal board") used to repurpose old LCD or LED panels into functional TVs or monitors.
Reconnect the power. The indicator LED should start (usually red and green), indicating the update is in progress. Download VST29 A3B V59 PANEL 1280x768 rar
If the power cuts out during a flash, the board may become "bricked" (dead). In this case, you would need an external SPI programmer to manually write the .bin file to the 8-pin flash chip on the board. The is a common analog TV control board