The firmware you are looking for is specific to the (also known as TP.SIS231.P83

If your TV is currently stuck on a logo or won't turn on, this USB update method is often the first step in troubleshooting a corrupted flash memory.

Firmware for these boards is usually distributed as a .rar file containing a .bin or .img file. Format a USB drive (8GB or less recommended) to FAT32 . Extract the .bin file from your downloaded archive.

Firmware is tied to the specific LCD/LED panel model (e.g., V390HJ1). Installing the wrong version can cause an upside-down image, incorrect colors, or a "black screen" bricked state.