A 14.6 MB PDF schematic for the Samsung SM-G850F, likely a slightly different copy or edition of a similar document for the same model. The name provides no revision or variant information. Technicians use it to trace supply rails from the PMIC, follow charging and USB circuitry, check connector pinouts for display and cameras and isolate components on shorted lines. Any PDF viewer opens it. Compare it with other copies if pages differ, and confirm the PCB matches SM-G850F before relying on component data.
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 @tamirat_moobile. 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.