Abbreviated or simplified drawing set for the Xiaomi Mi 3, as the Chinese title suggests, in a small 297 KB PDF. It probably condenses key circuits rather than providing the complete schematic, so treat it as a quick reference for common rails and connections. No board number or revision is mentioned, so verify against your PCB markings. For deeper tracing, pair it with fuller Mi 3 schematic and board layout material.
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)