Apple iPhone 5 repair archive, labelled 5G in the name and packed as a 12.6 MB ZIP. No content list or board number is given, so examine the archive to see which schematic, boardview or image files it holds. Technicians use such material to locate parts on the logic board, trace power and signal paths and find test points while diagnosing no-boot, charging or display faults. Confirm that the board matches this model and not the visually similar 5S or 5C before applying the documents.
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.