This indicates the RAM capacity of the board. Just like a computer, the TV needs to know how much memory it has available to run its operating system (often a version of Android).
This identifies the specific model of the mainboard (or "logic board"). In the world of universal TV boards, the MS338 is a common architecture often used in Smart TVs. Download MS338 PB802 1366x768 512M REF75 part1 rar
Searching for this specific file is usually an act of desperation or repair. When a modern Smart TV gets stuck on a "boot loop," hangs on the logo, or suffers from corrupted software, it becomes a "brick." Unlike older televisions that were purely analog, modern sets are essentially computers. When the software fails, the hardware cannot function. This indicates the RAM capacity of the board
This indicates that the firmware is so large it has been split into multiple compressed archives to make downloading easier. The Purpose of the Download In the world of universal TV boards, the
This refers to the display resolution. It tells the software exactly how many pixels to drive on the screen. Flashing the wrong resolution can result in a distorted image or a "blank" screen even if the TV turns on.