If you are using a manual download like a .rar file, you will likely need to perform a USB update:
The "part02.rar" extension indicates the firmware has been split into multiple compressed archive parts (e.g., part01, part02) to make downloading easier. Download SANSUI UHDTVSNA43QX0ZSA Firmware part02 rar
Firmware updates for Sansui Smart TVs often include performance optimizations, updated Google security patches, and fixes for issues like remote controller crashes. You can check for updates directly on the TV by navigating to > Device Preferences > About > System Update . If no update is listed, it may not be available for your specific model yet. Downloading the Firmware File If you are using a manual download like a