Service documentation for the Xiaomi Redmi Note 4X: a schematic diagram and service manual in a 9.67 MB RAR archive, catalogued as firmware.

Schematic diagram and service manual for the Redmi Note 4, a Xiaomi phone, provided as a 13.7 MB ZIP archive.

Service documentation for the Xiaomi Redmi Note 4G: a schematic diagram plus service manual inside a 5.04 MB RAR archive. No board revision is noted in the name.

Xiaomi Redmi Note 4 schematic diagram and service manual, according to the name, packed in a RAR archive of about 1.22 MB despite being listed as firmware.

Schematic and block diagram set for the Xiaomi Redmi Note 4, catalogued as firmware but described by its name as circuit documentation.

Full circuit schematic for the Xiaomi Redmi Note 4, a 16.7 MB PDF that covers the phone's main board.

Block diagram for the Xiaomi Redmi Note 4, a 3.79 MB PDF giving an overview of the main subsystems and how they link to the processor and power management.

Component layout diagram for the Xiaomi Redmi Note 4 main board, a 6.97 MB PDF showing where parts sit on the PCB.

ZIP archive of 1.23 MB for the Xiaomi Redmi Note 4, catalogued as firmware but named as a schematic, so the actual contents should be checked after extraction.