Service schematic for the Samsung SM-F936B, provided as a 2.23 MB ZIP; the F936 code belongs to the Galaxy Z Fold4, global B variant. The name lists no board revision. Typical uses include tracing supply rails from the PMIC, diagnosing no-charge or no-power faults, following display and sub-board flex connections and locating test points on the circuit pages. Verify the phone and PCB carry the same model code before relying on part references.
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 @phoneSchematics. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip