This refers to the main board (motherboard) model . It is a common "combo board" found in various 32" to 40" LED TVs.
When installing a new universal board, this firmware ensures the board communicates correctly with the specific 1366x768 panel. Technical Tools Required
Flashing incorrect firmware can permanently damage your television hardware. Ensure your board model matches T.R83.816 exactly before proceeding. HOW TO MAKE LCD LED TV SOFTWARE BACKUP
A digital copy (dump) of the EEPROM or SPI Flash memory chip from a working TV.
Technicians typically use this dump when a TV is experiencing "soft-brick" issues, such as:
Errors in the software that prevent the TV from functioning correctly.