PDF schematic of the Samsung Galaxy A30, model SM-A305N, with a size of 1.75 MB. Repair technicians rely on such diagrams to follow PMIC outputs, battery and charging lines, and to read connector pinouts for display, cameras and the USB sub-board. Any PDF reader opens it, and searching for net labels or reference designators saves time when hunting a short. Confirm the exact model suffix of the phone you are working on, since other A30 regional variants may use a different board.
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 @esquemaseletricos. 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.