If you can still power on the TV and only need to check the current software version or perform a factory reset, try these common service codes for this board: Press Menu then enter 8893 or 1147 . Method 2: Press Source then enter 2580 .
This is a well-known repository for TV firmware. A file named HK-T.RT2968P61.rar (314.3 MB) was archived on their channel lcd tv led tv smart tv software .
This forum hosts large "Megapacks" of TV software. The HK-T.RT2968P61 board is listed in their Megapack soft 2024 - volum I . Technical Specifications for Matching