This page is containing the official link to download SAMSUNG A20s SM-A207F schematic diagrams. Basically, these SAMSUNG diagram is used for repair faulty circuit finding. Xiaomi schematic diagram is introduced with a zip package, after unzipping the file then open with an adobe pdf reader, Sumatra pdf reader.
HERE YOU CAN DOWNLOAD SAMSUNG A20s SM-A207F SCHEMATIC DIAGRAM
SAMSUNG A20s SM-A207F Schematic Diagram