Finding a specific "rar" file for this firmware usually involves specialized technician forums or firmware databases. Here is how you can locate and use it: Where to Find the Download
If you find the .bin file inside the .rar archive, the general procedure is: to FAT32. Download RR8501 C031A V50 1920x1080 USB rar
: Flashing incorrect firmware can "brick" your TV mainboard, making it unusable without a hardware programmer. Always verify the board model printed on the PCB (e.g., TP.MS338.PB801) before proceeding. Finding a specific "rar" file for this firmware