: You can often find universal board firmware on sites like SmartTech TV Downloads or community-led repositories.
: Copy the firmware file (often named upgrade_loader.pkg or similar) directly to the root directory of the USB drive—do not place it inside a folder. Flashing Process : Turn off the TV and unplug the power cord. Insert the USB drive into the TV's USB port. Download RT2936P531 1366x768 Prismapro Firmware rar
: Platforms such as LCD LED TV Repair Solutions or Scribd's TV Update Procedures often share .rar archives for specific boards like the RT2936P531 : You can often find universal board firmware