The Upgrade Item in Pokemon GO
The upgrade item is an evolving item in Pokemon GO that can make certain creatures in the pocket transform into stronger versions. It's a key way to master evolution and expanding the Pokedex.
Players can acquire upgrade items by spinning Photo Discs at PokeStops and Gyms for seven days in a row, and also through events-specific Field Research tasks. However, these items have a low drop rate.
Porygon2 is a possible evolution item using this item
In Pokemon Go players can make use of a special item called the Upgrade to evolve certain Pokemon into more powerful versions. This process involves a few steps, but it's not difficult to do and provides an additional dimension to the game's gameplay.

One of the most unique Pokemon in the Pokemon franchise is Porygon that can be evolved into Porygon2 and then into Porygon-Z. To unlock these changes, you'll need have a few things. These include the Upgrade and Dubious disc. Although these items aren't common, they're not impossible to find in the game.
The Upgrade is a rare item that can be used to unlock the second stage of evolution for the Pokemon Porygon in Pokemon GO. To obtain item upgrade , players need to capture and transfer a Porygon. Each capture and transfer will yield one Candy and it is recommended to collect a lot of the creatures. Trainers can also acquire this item by spinning PokeStops, which are likely to dropping the item in addition to other rewards.
The Dubious Disc, another rare item found in Pokemon GO, can be used to evolve Porygon's more powerful form. To acquire this item, players need to collect 50 pieces of Porygon Candy. This can be achieved by taking a Porygon, taking them to Professor Willow, or walking with the Pokemon as their companion. Trainers can also spin PokeStops to try and land on this item, but it is a little more difficult.
It's a fun way give depth to your Pokemon GO experience. It requires a few unique items and in-game currency, but it's not terribly difficult to accomplish.
In contrast to other Pokemon in the series, Porygon can only be evolved into its final form with an item called the Upgrade. This item is extremely rare and is only available through PokeStops or by working on Research Breakthroughs. However, it's also possible to acquire the item by trading a Porygon with the item attached, or by using the Special Trade Item.
This is a special drop from tier 4.
Upgrades are items that can be used to improve equipment, by adding new features. The players can find upgrades in the game's inventory, in karma merchants or as rewards from special events. item upgrades can be added to armor, weapons, trinkets, and gathering tools. Upgrades can be added to any slot on an item. Certain upgrades require that an item of higher quality be added. The majority of upgrade components can be changed however the original component will be destroyed. Only a handful of types of upgrade are salvageable by using salvage kits that are of high quality like the Black Lion Salvage Kit and Ascended Salvage Tool.
Upgrades can be accomplished by by combining an upgrade item with the item it is placed into or by rolling the item with the rerolling token. The new item will have the same extra stats as the original, but will also have a different level and tier. Each item has a maximum upgrade level and a minimum item level. The item's rarity and level determine the tier. Each tier is divided into three levels. Each level has its own upgrade cost and bonuses.
In general upgrading an item boosts its main stat by a certain amount, and offers a random additional stat. The cost of upgrading an item is increased with the tier it is placed in however, there are discounts on certain items and the amount of upgrades needed is reduced with each step.
The upgrade item is obtained by spinning Photo Discs at PokeStops and Gyms, though it has a low chance to be dropped every day. It is also available as reward for a 7-day streak of spinning at least one PokeStop or gym Photo Disc each day, and through specific research tasks for events.