Service archive for the Xiaomi Mi 2 smartphone, packed as RAR and about 1.82 MB. Only the model is stated: no board number, revision or file type appears in the name. Its size is close to the separately listed Mi 2 schematic ZIP, suggesting similar circuit diagrams, but extract it and confirm. Such drawings are used to trace power from the PMIC, diagnose no-charge and no-power faults, and identify parts on a shorted rail. Check that the PCB revision matches before following the drawings closely.
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 @cyberlanelectonik. 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.