Schematic for the Samsung SM-G531H smartphone, provided as a 4.85 MB PDF. No board revision or extra variant is stated in the name beyond the model code. Repair technicians use this kind of drawing to follow supply rails from the power management IC, check charging and USB circuitry, trace display and touch connector signals, and pinpoint components to test when the phone shows no power or overheats. Open it with any PDF reader and confirm the model printed under the battery matches before using it.
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 @Schematics_Mobile. 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.