(found in Device Manager > Properties > Details), I can help you find the official download link
The KK.RV22.819 board is a multi-purpose, energy-efficient control board. It typically features a and supports both HD and Full HD (FHD) resolutions. The software, or firmware, acts as the operating system that manages the TV's hardware, including the LVDS interface, USB ports, and network connectivity. Common Reasons for Software Updates
Stay safe, and ensure that your software journey with kkrv22819 is both productive and secure.
Connect the TV to power. On some boards, the update starts automatically; on others, you must hold the on the TV panel until the update screen appears.