Samsung SM-G850F schematic, a large 14.7 MB PDF. The size suggests detailed circuit sheets and possibly layout pages showing where components sit on the board. Technicians use such files to trace supply rails, locate test points and isolate a shorted capacitor or failed IC on the main board. A PDF viewer with fast zoom is recommended for the dense pages. Make sure the board revision printed on the PCB matches the document before relying on component values.
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 @schematic_mobiles. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)