Component distribution map for a Xiaomi Redmi phone, as the Chinese title indicates, provided as a 6.29 MB PDF. The exact Redmi model and board revision are not given in the name, so check the drawing against your PCB before relying on it. A placement map like this helps locate capacitors, ICs and connectors referenced in a schematic and find suitable points for measuring rails or checking shorts during board repair.
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 @mobileschematicshub. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)