Check the sticker on the back of the LCD panel (e.g., V400HJ9-PE1).

Using the wrong firmware file can permanently damage your hardware. Before clicking a download link, verify these details: Confirm it is exactly TP.SK506S.PB802 .

The (properly identified as TP.SK506S.PB802 ) is a common "all-in-one" Smart TV mainboard used in various budget LED TVs, including brands like Daiko, Polar, and Erisson. Updating its firmware is typically done via a USB flash drive to fix software hangs, logo loops, or connectivity issues. Firmware Overview