Archive for the Redmi K30 5G version, 876 KB in ZIP format and filed in the firmware category, with no document type stated in the name. At this size it is unlikely to be a complete phone firmware and more probably contains service documents such as schematic pages. Unpack and check the contents first. Diagrams for a handset are used to follow rails from the PMIC, trace the charging circuit and locate parts near a short; the 5G model differs from the 4G K30, so make sure the variant matches your board.
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 →