Schematic in PDF form for the Samsung SM-G850F smartphone, a 14.7 MB document that likely covers the main board circuitry in detail. The file name gives only the model code, so no board revision is stated. Technicians use a phone schematic like this to trace power rails from the PMIC, follow charging and USB lines, check display and camera connector pinouts and find which components sit on a shorted line. Open it in any PDF viewer with text search, and confirm the model and hardware revision printed on the PCB before relying on part 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 @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.