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The Upgrade Item in Pokemon GO The upgrade item is a special evolution item in Pokemon GO that can make certain pocket monsters evolve into more powerful versions. It's a crucial step towards mastering the evolution and expanding your Pokedex. Players can acquire upgrade items by spinning Photo Disks at PokeStops and Gyms for seven days in a row, and through event-specific Field Research tasks. These items are rare but they do drop. Porygon2 can be developed by using this item In Pokemon Go players can utilize a unique item called the Upgrade