The file identified as (specifically "part3.rar") is a critical firmware component for LED TV mainboards, such as the TP.MS358.PB801 . This specific software is used to initialize hardware and restore functionality to "smart" features on compatible Android-based TV panels. Technical Overview

: Reviving "dead" boards that do not boot or show a standby light but no picture.

: For many boards in this series, the factory service menu can be accessed using the remote code Menu + 1147 .

: Be aware that many community-hosted firmware downloads (especially from Telegram or YouTube tutorials) are password-protected to ensure users watch the accompanying instructions.

: Installing the wrong resolution firmware (e.g., 1080p software on a 768p panel) can lead to a distorted or black screen.

or similar variants used in Samsung and other brand LED TVs.