Schematic diagram set for the Xiaomi Redmi K40 Pro smartphone, listed under firmware but named as circuit documentation, packed in a RAR of around 1.80 MB. No board number or revision appears in the name. Use the pages to map supply rails, trace charging and display circuits and locate components when diagnosing no power, no charge or no display faults. Content is normally PDF. Confirm the handset board matches the document, because regional and Pro variants can differ in layout.
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 @mischematic. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →