Samsung SM-A205F schematics, the Galaxy A20, provided as PDF files inside a RAR archive of about 4.06 MB. No board revision is stated in the name, so verify the mainboard version against the documents. Diagrams like these let a repairer follow power distribution from the PMIC, check the battery and USB charging paths, locate components on a short and read connector pinouts. After extraction, any PDF viewer opens the pages, and searching for net or part names makes cross-referencing between sheets faster.
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 @cyberlanelectonik. 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.