Disassembly and reassembly instructions for the Samsung SM-A700H, a 731 KB PDF. It describes the sequence for opening the phone, removing the battery, boards and flex cables, and refitting everything correctly, often with photos marking screws and connectors. This is mechanical documentation rather than a circuit diagram, so electrical diagnosis requires the matching schematic. Following the documented order helps avoid damaging the display, adhesive seals or fragile flexes. Confirm the model code on your unit, since H, F and other suffix variants differ.
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.