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The Upgrade Item in Pokemon GO The upgrade item in Pokemon GO is a special evolution item that can help certain creatures in your pocket increase their power. It's an essential step towards mastering evolution and expanding the Pokedex. The players can upgrade their items by spinning Photo Disks in PokeStops or Gyms for a whole week, as well as by completing Field Research tasks that are unique to an event. However they are not very popular and have a low drop rate. is used to transform Porygon into Porygon2 In Po