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 .
While holding the button, plug the TV back into the power outlet.
the TV or remove the USB until the process is 100% complete and the TV restarts. Where to Download
If your TV is stuck on a logo or "bootlooping," use the method: Turn off the TV and unplug it from the power outlet. Insert the USB drive into the USB 2.0 slot of the TV. Press and hold the Power button on the TV (not the remote).
The is a common motherboard/chassis used in various brands of 4K Ultra HD Smart TVs (often referred to as "China Mainboards" or used by brands like Smart-Tech, Skyworth, or Noble Skiodo). The specific file RT2861P839 3840x2160 Clever55 part4 rar is a compressed firmware update for a 55-inch panel with a resolution of 3840x2160. Firmware Details Mainboard Model : RT2861P839 Resolution : 4K UHD (3840x2160) Screen Size : 55-inch (Clever55) File Format : .rar (Multipart archive) How to Prepare the Firmware
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 .
While holding the button, plug the TV back into the power outlet.
the TV or remove the USB until the process is 100% complete and the TV restarts. Where to Download
If your TV is stuck on a logo or "bootlooping," use the method: Turn off the TV and unplug it from the power outlet. Insert the USB drive into the USB 2.0 slot of the TV. Press and hold the Power button on the TV (not the remote).
The is a common motherboard/chassis used in various brands of 4K Ultra HD Smart TVs (often referred to as "China Mainboards" or used by brands like Smart-Tech, Skyworth, or Noble Skiodo). The specific file RT2861P839 3840x2160 Clever55 part4 rar is a compressed firmware update for a 55-inch panel with a resolution of 3840x2160. Firmware Details Mainboard Model : RT2861P839 Resolution : 4K UHD (3840x2160) Screen Size : 55-inch (Clever55) File Format : .rar (Multipart archive) How to Prepare the Firmware
