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Pokemon GO Upgrade Items and Components An upgrade item is a unique item that will make certain Pokemon evolve. The Upgrade is obtained by spinning a photo disc. It is sometimes offered as a prize during Pokemon GO events. The Upgrade can also be placed in weapons, armor, trinkets and gathering tools to increase the level of their item. The upgrade costs Flightstones and crests, depending on the item type. Upgrade components Upgrade components can be added to weapons, armors, trinkets and other tools for gathering in o