7 Little Changes That Will Make The Biggest Difference In Your Upgrade Item
The Upgrade Item in Pokemon GO
The upgrade item in Pokemon GO is a special evolution item that helps certain pocket monsters to become more powerful. It's an important bridge to understanding the evolution process and expanding your Pokedex.
The players can upgrade their items by spinning Photo Discs in PokeStops or Gyms seven days straight and also by completing Field Research tasks that are unique to an event. These items aren't common, but they do drop.

Porygon2 is try these guys by using this item
In Pokemon Go, the player can use an item called Upgrade to transform Pokemon into more powerful versions. This process requires a few steps, but it's not difficult to master and adds some extra depth to the game's gameplay.
One of the most unique Pokemon in the Pokemon franchise is Porygon that can be transformed into Porygon2 and then into Porygon-Z. These evolutions require a variety of items to unlock, including the Dubious Disc and Upgrade. These items aren't common, but not impossible to locate in the game.
The Upgrade is a rare item that is used to unlock the second stage of evolution for Pokemon Porygon in Pokemon GO. To get this item, players must to capture and transfer Porygon. It is best to capture as many Porygons possible. Each capture and transfer will yield one Candy. Trainers can also obtain this item by spinning PokeStops, which are likely to dropping the item in addition to other rewards.
The Dubious Disc is another rare item in Pokemon GO that can be used to evolve Porygon into a more powerful form. To get this item, players have to collect 50 pieces Porygon Candy. This can be achieved by collecting Porygon and taking them to Professor Willow, or walking with the Pokemon as their companion. Trainers can also spin PokeStops to attempt to hit this item, but it's a bit more difficult.
Transforming a Porygon into a secondary form is a thrilling process that adds some depth to the Pokemon GO experience. It requires a few special items and currency in the game, however, it's not too difficult to achieve.
In contrast to other Pokemon in the series, Porygon can only be transformed into its second and final form using an item called the Upgrade. This item is extremely rare and is only available by spinning PokeStops, or by completing Research Breakthroughs. You can also acquire the item if you trade an Porygon with the item attached or if you make use of the Special Trade item.
This is a special drop of level 4.
Upgrades are items that can be used to upgrade equipment, by adding new features. Upgrades can be found in the inventory of the game, from karma merchants or as rewards for special events. They can be added to weapons, armor trinkets, trinkets, or gathering tools. Upgrades can be added to any slot on the unit. However, some upgrades require an item that is above a certain level to be added. Most upgrade components can be replaced however, doing so could destroy the previous one. Only a handful of upgrade types can be salvaged using high-tier salvage tools, like the Black Lion Salvage Kit or Ascended Salvage Tool.
Items can be upgraded by combining an upgrade item with the item that it is placed in, or rerolling it with a token for reroll. The rerolled item has the same extra stats and features a different tier and level. Every item has an upgrade level maximum and a level minimum. The item's rarity and level determine the level. Each tier is divided into three levels. Each level comes with its own upgrade costs and bonuses.
Generally upgrading an item will increase its main stat by a certain amount, and provide an extra stat that is random. The cost to upgrade an item will increase as its tier increases however, there are discounts for certain items, and the number of upgrades required decreases with each step.
The upgrade item is obtained by spinning Photo Discs in PokeStops or Gyms. However it has a low chance of dropping each day. It can be obtained by spinning at least one PokeStop Photo Disc or gym Photo Disc every day to earn 7 days as well as by completing Research Tasks and task-specific to events.