). It is a popular 4K motherboard used in 55" to 58" smart TVs, featuring a quad-core ARM Cortex-A53 CPU and supporting HDR10+. Target Device ( Polarine 43PU11TC

: Confirms the firmware is configured for 4K Ultra HD display panels.

: The process usually takes 5 to 7 minutes . Do not power off the TV during this time, or you may permanently damage the mainboard. Mainboard Availability TP.MT5522S.PC822 Main Board Replacement 55"-58" TVs

Plug the USB into the TV's slot while the TV is unplugged.

Copy the extracted firmware file to the root directory of the USB.