Circuit diagrams for the Xiaomi Redmi 7, codename onclite, provided as a 2.58 MB ZIP archive. Though catalogued as firmware, the name marks it as a schematic. It supports board-level work such as tracing rails out of the power management IC, checking charge paths, and finding components linked to display, touch or audio faults. Open the extracted files in a PDF viewer, and verify the mainboard revision against the sheets first, since part numbering can change between board versions.
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 →