Charging and USB data section of the Samsung SM-A11 schematic, saved as a 4.34 MB PDF. It covers the USB connector, overvoltage protection, charger IC, battery connector and the data lines toward the processor. Use it when the phone will not charge, charges slowly or is not seen by a computer, measuring VBUS, checking the protection IC and looking for shorts on the charge path. Any PDF reader opens it; confirm the board revision matches before relying on designators.
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 .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.