Schematic archive in ZIP form, about 500 KB, labelled only J105H, which corresponds to a Samsung Galaxy J1 mini series model code, though the name gives no board revision. Phone schematics like this show the power management IC, charging path, battery connector and signal lines, helping a technician trace a no-power, no-charge or short fault. Extract the archive to check which file formats are inside. Make sure the model and board variant on the PCB match before relying on component values.
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 @phoneSchematics. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.