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The Upgrade Item in Pokemon GO The upgrade item is a special evolutionary item in Pokemon GO that can make certain monsters in your pocket change into more powerful versions. It's a key bridge to mastering evolution and expanding the Pokedex. Players can upgrade their items by spinning Photo Disks at PokeStops and Gyms for seven days in a row and also through specific event-related Field Research tasks. These items are rare however they are available. Pory