Samsung Galaxy J8 (2018) archive tagged with model code SM-J810F, 9.28 MB in ZIP format. Contents are not specified by the name, so it may hold schematics, layout drawings or a service manual; check after unpacking. Such files help a technician follow power from the battery connector, diagnose charging and display faults, and locate components and test points on the board. Verify that the phone label shows the same model code before working from it.
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.
Built-in OS tools7-Zip