Samsung Galaxy A02s (SM-A02S) schematic section in PDF covering the Wi-Fi, Bluetooth and GPS circuits, one of a sectioned set of about 3.70 MB pages. Use it to follow the connectivity chip supplies, the RF paths and antenna matching components when the phone cannot enable Wi-Fi, pair Bluetooth devices or lock GPS. Open it in any PDF reader and cross-reference with the other A02s section pages. Confirm the exact model and board revision on your unit, since regional variants can differ.
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.