Schematics for the Samsung SM-A800I, supplied as an 8.29 MB PDF document. The name carries no board revision or other details beyond the model number. Use it to trace rails from the battery and PMIC, check charging and USB circuitry, follow display, camera, audio and SIM signals, and locate the component behind a short or failure. Any PDF reader opens it, with designator search for quick navigation. Check the PCB marking on the handset against the document before relying on its component values.
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.