Nokia X2-00 RM-618 schematics, version 1.0, in a 3.77 MB RAR archive whose name carries a copy suffix, suggesting a duplicate of the same package rather than a new revision. Compare it with the other RM-618 file if you need to confirm contents. The drawings are used to follow battery and charger circuits, regulator outputs, keypad and display lines and to find faulty parts on a shorted rail. Match the RM code on the phone label and unpack with WinRAR or 7-Zip.
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.
7-ZipWinRARThe Unarchiver (macOS)