Archive for the Xiaomi Redmi K30, named as covering both the 4G and 5G variants, in ZIP format at about 1.75 MB. Although catalogued as firmware, the name describes it as schematics, so it most likely holds circuit diagrams rather than a flashable image. Use it to trace power rails, charging and RF sections and to find parts when diagnosing a fault. The 4G and 5G boards differ in hardware, so make sure you open the diagram matching your exact model before measuring or replacing components.
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 .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 →