Schematic archive in ZIP format for a device identified as A307F. The FN suffix is not explained in the name. The code matches Samsung Galaxy A30s phone model numbering, but the name does not confirm the brand, so treat that as unverified. A schematic like this lets a technician trace charging and power lines, display and camera connections, and find faulty parts near a short. Extract it and open the drawings in a PDF or schematic viewer. Check that the board marking on your unit matches before trusting part locations.
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.