Schematic of the Xiaomi Mi Note 10 smartphone, packed as a 1.31 MB PDF document. Repair technicians use phone schematics to follow power from the battery and charger IC to the PMIC outputs, check display, camera and sub-board connector pinouts, and confirm expected voltages at test points. When a rail is shorted, the diagram shows which capacitors and ICs share it, narrowing down the faulty part. Open it in a PDF viewer with text search, and make sure the device is the Mi Note 10 rather than a related model.
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 @mischematic. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.