Copy the extracted firmware file directly to the of the USB drive (do not put it inside a folder). Installation Procedure
Release the button when the front LED starts blinking rapidly or an "Upgrading" progress bar appears on the screen. Download RT2861P839 3840x2160 Clever55 part4 rar
Use a tool like or 7-Zip to extract "part1." This will automatically combine all parts into a single firmware file, usually named allupgrade_2861.pkg or similar. Format a USB flash drive (preferably 8GB or 16GB) to FAT32 . Copy the extracted firmware file directly to the
Official firmware is often found on manufacturer support pages like Smart-Tech TV Downloads by entering your specific model name. For generic boards, technicians often use community forums or specialized firmware databases. How to update the firmware / Software on a Samsung TV Download RT2861P839 3840x2160 Clever55 part4 rar