Repair documentation for the Xiaomi Redmi 3 in a 1.83 MB ZIP file, described by its name as a schematic diagram with service manual though listed among firmware.

Schematic diagram plus service manual for the Xiaomi Mi 9T, sold in some markets as the Redmi K20, packed in a 1.36 MB RAR.

Samsung SM-A920F service manual in PDF form, compressed inside an 8.70 MB ZIP archive and catalogued as a schematic.