Service material for the Nokia X6 mobile phone packed in a 770 KB RAR archive. The name does not state what is inside, so expect a schematic, layout or service manual style document and verify after extracting. Phone repair documents of this kind help locate components, follow charging, display and audio circuits, and identify test points when diagnosing a dead or partially working handset. Make sure the hardware version of your phone matches the drawings, since Nokia often revised boards during a production run of a single model.
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.