If the .rar file you need is for technical repair, it likely contains schematics or circuit diagrams.
: If the TV does not boot, you must download the specific firmware .rar or .bin file, extract it to a FAT32-formatted USB drive, and insert it into the TV's USB port while holding the power button to trigger a forced update. Скачать KONKA,JVC KDL55XS712AN rar
: You can check the KONKA Download Center or the JVC Global Support page for model-specific files. Service and Repair Information If the
: Most KONKA-manufactured smart TVs can be updated by connecting to the internet, navigating to Settings , and selecting Check for Update . navigating to Settings