Firmware files for 4K Smart TVs are often large (exceeding 1GB). To make them easier to upload and download on technical forums, they are frequently split into multiple compressed segments.

Downloading incorrect firmware can permanently damage your TV's mainboard. Ensure your board number matches exactly.

Place all .rar parts in the same folder. Right-click on Part 1 and select "Extract Here" using a tool like WinRAR or 7-Zip . This will automatically combine all segments into a single usable firmware file (usually an .img or .bin file). How to Install the Firmware via USB

This article provides technical guidance for downloading and installing the firmware for the Smart TV, specifically for units utilizing the CV638H-D50 mainboard. Hardware Specifications

Common panels include T500QVN03 and ST5461D08-1 Understanding the "Part10.rar" File

Use a high-quality USB 2.0 drive formatted to FAT32 .