Schematic for the Samsung SM-J710F smartphone, provided as a 6.27 MB PDF. Apart from the model code, the name gives no revision or variant data. Technicians rely on such a diagram set to trace voltages out of the PMIC, follow charging, USB and battery lines, check display and camera connector pinouts and identify components connected to a rail that reads shorted. It can be viewed in any PDF viewer, ideally one supporting text search. Make sure the PCB markings correspond to this model before acting on component values or positions.
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.