Because this is a multi-part archive, you must follow these specific steps to avoid a corrupt file:
: Ensure you have all parts (e.g., part01 , part02 , part03 ) in the same folder on your computer. Download SK708D PC821 UHD MEDIASTAR REF90 part03 rar
: With the TV off, insert the USB, then power the TV on. Many systems will begin the update automatically when they detect the file. Because this is a multi-part archive, you must
: Right-click on Part 1 and select "Extract Here." This will automatically combine all parts into a single firmware file (usually ending in .bin or .img ). : Right-click on Part 1 and select "Extract Here
The firmware for the board, often used in Mediastar UHD Smart TVs, is typically distributed as a multi-part RAR archive. You can find these files through community-led resources such as the Electro-Support Facebook page or specialized tech sites like Electro-Support.info . Important Installation Steps
: Copy the extracted firmware file to a FAT32-formatted USB flash drive.
Installing the wrong firmware can permanently damage (brick) your TV. Always verify that the board number on the physical hardware matches TP.SK708D.PC821 exactly before proceeding.