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

: Hold the power button on the TV (not the remote) and plug the power cord in. Continue holding until the LED indicator begins to blink, signaling the update has started.

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

). 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

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