Schematic set in PDF form for the Samsung SM-A205F, the Galaxy A20, packed in a 4.06 MB RAR archive. The name gives no revision or sheet details. Phone schematics like this let a technician follow power rails from the PMIC, trace charging, display and camera lines, and identify components when hunting a short or dead circuit. Open the PDF in any reader and search by net or part name. Check that the board revision on your unit matches the drawing, since Samsung may change parts between versions.
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 @SMART_PHONE_SCHEMATICS. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.