The Upgrade Item in Pokemon GO
The upgrade item is a special evolving item in Pokemon GO that can make certain creatures in the pocket transform into more powerful versions. It's an important step to learning the evolution and expanding your Pokedex.
Players can upgrade their items by spinning Photo Discs in PokeStops and Gyms for seven days in a row and also through specific event-related Field Research tasks. These items are scarce however they are available.
Porygon2 can be evolved using this item
In Pokemon Go players can use a special item called the Upgrade to transform certain Pokemon into their more powerful versions. This process requires a few steps, but it's not difficult to do and provides an extra dimension to the game's gameplay.
Porygon is one of the most unique Pokemon in the Pokemon series. It is able to evolve to Porygon2 or Porygon-Z. To unlock these evolutions, you'll need to have a few things. These include the Dubious disc and Upgrade. These items aren't common, but they are not impossible to find in the game.
item upgrading is a scarce item that can be used to unlock the second stage of evolution for Pokemon Porygon in Pokemon GO. To unlock this item, players must capture and transfer a Porygon. Each capture and transfer will result in one Candy which is why it's best to collect a large number of the creatures. Trainers can try to collect this item by spinning PokeStops. They have a chance to drop the item, as well as other rewards.
The Dubious Disc, another rare item that is found in Pokemon GO, can be used to evolve Porygon's more powerful form. To get this item, players have to collect 50 pieces of Porygon Candy. This can be accomplished by catching Porygons, then transferring them Professor Willow or walking with your Pokemon as a buddy. Trainers can also spin PokeStops in order to attempt to land on this item, but it is a little more difficult.

It's a fun way add some depth to your Pokemon GO experience. It requires a few unique items and in-game currency, but it's not terribly difficult to achieve.
In contrast to other Pokemon in the series, Porygon can only be evolved into its second and final form with an item called the Upgrade. This item is extremely rare and can be found by spinning PokeStops, or by doing research Breakthroughs. It is also possible to obtain the item by trading the Porygon when it has the item attached, or by using the Special Trade Item.
It is a special tier 4 drop
An upgrade item is an item that is used to enhance equipment by adding additional attribute bonuses. Upgrades can be found in the game's Inventory, from karma sellers, or as rewards for events. They can be added to weapons, armor, trinkets, and gathering tools. Upgrades can be added to any slot on the unit. However, some upgrades require an item above certain levels to be added. The majority of upgrade components can be replaced but doing so will destroy the previous one. Only a few upgrade types can be salvaged with high-end salvage tools, such as Black Lion Salvage Kit or Ascended Salvage Tool.
Items can be upgraded by combining the upgrade item with the item that it is placed in, or rerolling it with a reroll token. The rerolled item will have the same stats as the original, but also a new tier and level. Each item comes with an upgrade level maximum and minimum level. Upgrade levels are determined by the item's level, which is determined by its rarity and level. Each tier is divided into three levels. Each level comes with its own upgrade cost and bonuses.
Generally upgrading an item will increase its main stat by a fixed amount, and will also give a random extra stat. The cost to upgrade an item increases as its tier increases however, there are discounts available for some items and the number of upgrades required drops with each step.
The upgrade item can be obtained by spinning Photo discs at PokeStops and Gyms however it has a low chance to drop each day. It is 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 other task-specific events.