If your model isn't listed or you have trouble with the serial number, you can Submit a Service Request directly to KIVI. Common Firmware Installation Steps
Smart TV . This file appears to be one segment (part 8) of a larger firmware package designed for the chassis. Official and Safe Acquisition
Downloading firmware from unofficial sources (like multi-part .rar files from forums) carries risks, including system instability or "bricking" your TV. The safest way to obtain the correct software is through official channels: Download RT2861V09 3840x2160 16G Kivi 49UP50GU part08 rar
), as using the wrong firmware can permanently damage the display.
If you successfully download the complete set of files (all parts must be present to extract), the typical update procedure via USB is: If your model isn't listed or you have
All parts (part01, part02, etc.) must be in the same folder. Extracting part01 will usually combine them into a single file (often named MstarUpgrade.bin or similar).
Use the KIVI Software Support Page where you can enter your TV's serial number (found on the back of the device) to receive the exact, validated firmware for your specific model. Extracting part01 will usually combine them into a
Searching for the specific file name suggests you are looking for a multi-part firmware archive for a KIVI 49UP50GU