Zipped schematic package labelled A022F.M.G, a code that matches Samsung's SM-A022F model numbering, with the M and G suffixes likely marking the main board sheet set. At 2.21 MB the archive probably holds PDF circuit diagrams. Technicians use phone schematics to follow battery and PMIC rails, trace charging, display and SIM lines, and find which component sits on a shorted net. Open the extracted pages in any PDF reader and compare the PCB revision silkscreen with the drawings before relying on part references.
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.