Xiaomi Redmi Note 4G schematic, codename dior, distributed as a 5.22 MB ZIP archive. The index lists it under firmware, although the content named is a circuit diagram set. For an older handset like this it helps trace supply rails, battery and USB charging lines, and signal paths between the SoC, memory and peripherals when diagnosing a dead or bootlooping board. Open the extracted files in a PDF or image viewer and check the PCB revision printed on the board before taking component references as accurate.
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 →