Huawei G510 smartphone repair pack stored as a 3.92 MB ZIP archive. The file name carries only the model, so whether it holds full schematics, a component placement map or a service guide must be checked after extraction. Documentation like this is used to follow power rails, locate the charging IC and connectors, identify test points and narrow down short circuits on the mainboard. Before working from it, compare the board number and revision silkscreened on the PCB with the pages inside, since small revisions may move parts.
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.