Schematic PDF for the Xiaomi Redmi 9A smartphone, code name dandelion. It covers the circuits of the phone's main board, typically including the PMIC, charging path, battery connector, display, camera and RF sections. Any PDF reader opens it, and text search helps find net names quickly. Technicians use it to trace power lines, check which capacitors sit on a shorted rail and find test points for charging or no-boot faults. Check that your phone is the same hardware variant before relying on the drawings.
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.