Samsung Galaxy S5 Plus schematic for the SM-G901F with 16GB storage, in PDF format at 11.5 MB. The storage figure in the name indicates the memory configuration the diagram set was drawn for. A phone schematic like this supports fault-finding on power rails, charging and battery circuits, display and touch interfaces, and RF paths, and helps pinpoint parts on a shorted line. Open it in any PDF reader and verify that the handset's model code and board revision agree with the document.
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 @uzb4422. 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.