Use a tool like WinRAR or 7-Zip . Right-click the first file ( part01.rar ) and select "Extract Here" to combine them into a single usable firmware image (usually an .bin or .img file). 📥 How to Install the Firmware
If you need to adjust screen parameters after an update, you can often access the service menu by pressing Source followed by 2580 or Menu followed by 1147 on the remote. Download CV538H 3840x2160 BBK 50LEX 6027 part02 rar
I can provide more targeted help if you let me know: Is your TV stuck on the logo ? Do you have a black screen but have sound? (Technical forums like KenotronTV often use "123"). Use a tool like WinRAR or 7-Zip
You must download all parts (part01, part02, etc.) into the same folder before extracting. Download CV538H 3840x2160 BBK 50LEX 6027 part02 rar