Visit the Hisense Global Support or specific regional sites like Hisense USA and Hisense Russia to search by your specific serial number.
If you have already found a multi-part RAR file (e.g., part1, part2) on a third-party forum: Hisense Firmware Downloads & Updates | Support
To check panel info or version details without downloading external files, you can often access the service menu by pressing (on some models) or Menu > Sound > Advanced Audio > Balance (at 0) > 1969 . Important Note on RAR Files
This manual includes setup instructions, safety protocols, and basic troubleshooting.