Apple iPhone 8 Plus schematic document in PDF, 2.35 MB. The name does not state a board number or revision, so check the logic board markings before relying on page references. Technicians use iPhone schematics to trace rails from the PMU, follow the Tristar and charging circuitry, read connector pinouts for display, battery and dock flex, and identify which capacitors hang on a shorted line. Since this model uses a stacked layout, pair it with a boardview to find physical positions. Any PDF viewer opens 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 @schematic_mobiles. 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.