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The Upgrade Item in Pokemon GO The upgrade item is a special evolving item in Pokemon GO that can make certain creatures in the pocket transform into stronger versions. It's a crucial step towards learning the evolution and expanding your Pokedex. Players can upgrade their items by spinning Photo Discs at PokeStops or Gyms seven days straight, as well as by completing Field Research tasks that are specific to an event. However these items have a low drop rate. Poryg