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The Upgrade Item in Pokemon GO The upgrade item in Pokemon GO is a special evolution item that helps certain pocket monsters to become more powerful. It's a crucial step towards learning the evolution and expanding your Pokedex. Players can purchase upgrade items by spinning Photo Disks at PokeStops and Gyms for seven days in a row and through specific event-related Field Research tasks. These items aren't common, but they do drop. is used to evolve Porygon into Porygon2 In Pokemon Go, players can use a special item called the Upgrade to evolve certa