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The Upgrade Item in Pokemon GO The upgrade item in Pokemon GO is a special evolution item that helps certain monsters in the pocket become more powerful. 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 through Field Research tasks that are specific to an event. These items are rare however they are available. It is used to transform Porygon into Porygon2 In Pokemon Go, the play