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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 creatures in the pocket evolve into stronger versions. It's a crucial step towards understanding the evolution process and expanding your Pokedex. Players can upgrade their items by spinning Photo Discs in PokeStops or Gyms for a whole week and also by completing Field Research tasks that are specific to an event. These items aren't common, but they do drop. It is used to e