Schematic archive for a device coded A013F, a code consistent with Samsung's SM-A013F, with an M suffix that likely points to the main board drawings. The 3.99 MB zip should contain the circuit pages needed to trace power rails from the battery connector through the PMIC to the processor, memory and display. Use it alongside a multimeter to check diode-mode readings on suspect lines and to locate the source of a short. Verify the revision printed on the PCB before trusting part locations or 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.