Archive for the Xiaomi Mi 4S, code name aqua, 962 KB in ZIP format, with no document type or board revision given in the name. The size suggests service documents such as schematic or layout pages rather than a full firmware image, though the contents should be checked after extracting. Such material helps trace power rails, follow charging and USB circuits, read connector pinouts and locate components when diagnosing no-power or no-charge faults. Verify that the board marking on the phone matches before relying on any values or pinouts.
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.