A 6.27 MB PDF holding the schematic for the Samsung SM-J710F smartphone. The name identifies just the model, with no revision or board code mentioned. For bench work this sort of document is used to map power rails, check which components sit on a shorted line, follow the USB charging path and locate the pinout of display, SIM and camera connectors. Any PDF reader will open it. Make sure the model code on the phone matches, since regional variants can differ in RF and power sections.
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.