Samsung SM-A05 schematic section for WiFi, Bluetooth and GPS, delivered as a 6.27 MB PDF. It shows the connectivity chip supplies, clock source, antenna paths and the matching and filter components between chip and antenna contacts. Use it when WiFi will not enable, Bluetooth is greyed out or GPS fails to lock, measuring the supply rails and inspecting antenna feed parts. Any PDF reader opens it; confirm the board revision on the handset matches before relying on component 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.