Ensure the resolution ( 1366x768 ) and panel voltage match your screen exactly, as installing the wrong firmware can lead to a "black screen" or "inverted colors".
Typically, you rename the extracted file (often allupgrade_ms338_2G_ref30.bin or similar) and place it on a FAT32-formatted USB drive, then power on the TV to trigger the auto-update.
Since you are looking for "part07," you must download all other parts (part01 through the final part) into the same folder before extracting. The archive cannot be opened with only one piece. Download MS338 PB819 1366x768 REF30 part07 rar
Are you attempting a for a boot loop, or are you looking to replace the mainboard entirely? TP.MS338.PB819 USB Firmware Software Bios Bin
For hardware-level repair (e.g., eMMC flashing), pinout diagrams can be found on platforms like Scribd . Important Precautions Ensure the resolution ( 1366x768 ) and panel
Multi-part .rar archive (this specific request is for part 07 ).
Often used to enter the service menu after installation: Menu + 1147 . Where to Find the Download The archive cannot be opened with only one piece
Firmware for these China-made universal boards is usually hosted on specialized technician forums or shared via cloud storage links: