An archive of repair files. Shared as “332寸巴基斯坦(大三星0707)SK108.PB818-540MA软件.zip” — a .zip file, 5.98 MB.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @led_software. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip