Schematic for the Xiaomi Mi 2A, supplied as a 733 KB ZIP archive. The name gives the model only, with no code name or board revision. Circuit diagrams like these are used to trace the power supply chain from the battery connector through the PMIC, follow the USB charging path, check display and camera connector pinouts, and find the component responsible for a shorted rail. Extract the file and open the pages in a PDF viewer, comparing the markings on the phone mainboard with the drawings, as the Mi 2A differs from the Mi 2.
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 @esquematicosparatodos. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.