RAR archive of about 3.52 MB holding a Nokia Asha schematic together with a service manual, as the Persian title states. The name includes the number 201, which most likely points to the Asha 201, but check the extracted documents to confirm the exact model. A schematic and service manual pair is useful for tracing power and charging circuits, finding component locations and following disassembly and test procedures. Extract it with WinRAR, 7-Zip or a similar tool, then open the contents in a PDF reader.
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 @mobileshematic. 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.