Guide to the charging process of the Samsung Galaxy A10, provided as a 1.05 MB PDF. It likely illustrates the path from the USB connector through the charging IC and protection parts to the battery connector. Technicians use such a diagram when a phone will not charge, charges slowly or shows a short on VBUS, checking voltages and continuity at each stage. Compare the board layout to the actual unit, since revisions may differ, and open the file in a PDF viewer alongside a USB ammeter.
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 @canalesquematicos. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.