ASUS X555LI schematic in PDF, about 1.22 MB, with RG in the name, which on ASUS files usually indicates the board revision release; the exact number is not stated. The document covers the circuit-level detail a technician needs: power-on sequence, charger, CPU and graphics rails, and connector pinouts. Use it to trace a dead rail back to its regulator, verify enable signals and identify parts on a shorted line. Any PDF reader opens it. Compare the revision printed on your mainboard with the schematic before relying on component values or placement.
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 @cyberlanelectonik. 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.