Schematic archive catalogued under Samsung and named only A12, presumably the Galaxy A12 handset, though the name does not confirm the variant. It is a 1.5 MB ZIP that likely contains PDF circuit diagrams. Phone schematics help trace the charging path, PMIC outputs, display and camera lines, and locate test points during short-circuit diagnosis. Extract it and verify the exact model code against the board before relying on any component 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.
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Built-in OS tools7-Zip