Circuit diagrams for the Xiaomi Redmi Note 4, the variant coded nikel, supplied in a 1.23 MB ZIP archive. Catalogued as firmware, the file is in fact a schematic for hardware service. Technicians use it to locate parts, follow power and charging nets, and find test points when tracking a short or missing voltage. Keep in mind that nikel differs from the mido based Note 4X, so confirm the board marking matches before using the drawing. The pages normally open in any PDF viewer after extraction.
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 @esquematicosparatodos. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →