Compressed ZIP archive of 2.53 MB labelled for the Huawei Y320 phone. Nothing in the name says whether it contains a schematic, a component layout or repair notes, so open it and check the contents before use. Packs of this kind are typically used to follow battery, charging and backlight circuits, identify parts around the PMIC and locate measurement points on the board. Phone boards often change between production batches, so compare the PCB marking against the documents before trusting values or part positions.
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 @tamirat_moobile. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.