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 a key step towards mastering evolution and expanding the Pokedex.
Players can acquire upgrade items by spinning Photo Discs in PokeStops and Gyms for seven days in a row, and also through event-specific Field Research tasks. However they have a low rate of dropping.

Porygon2 is a possible evolution item using this item
In Pokemon Go players can utilize a unique item called the Upgrade to evolve certain Pokemon into more powerful forms. This process involves several steps, but it's not difficult to do and provides an additional dimension to the game's gameplay.
Porygon is among the most distinctive Pokemon in the Pokemon series. It can be evolved to Porygon2 or Porygon-Z. These evolutions require a variety of items to unlock, including the Upgrade and Dubious Disc. These items aren't common, but are not impossible to find in the game.
item upgrade is a very rare item that unlocks the second evolution stage for the Pokemon Porygon. To unlock this item, players must to capture and transfer Porygon. It is recommended to gather as many Porygons as possible. Each capture and transfer will yield one Candy. Trainers can also get this item by spinning PokeStops, that have the possibility of dropping the item in addition to other rewards.
The Dubious Disc is another rare item in Pokemon GO that can be used to transform Porygon into its more powerful form. To obtain this item, players have to collect 50 pieces of Porygon Candy. This can be accomplished by catching Porygon, transfer them to Professor Willow, or walking with the Pokemon as their buddy. Trainers can also try to obtain this rare item by spinning PokeStops, although it's a little more difficult to land on one.
Evolving a Porygon into its 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, but it's not terribly difficult to achieve.
Porygon like other Pokemon in the series, can only change into its final form by using an item known as Upgrade. This item is extremely scarce and can only be found by spinning PokeStops, or by completing research Breakthroughs. It is also possible to obtain the item by trading a Porygon while it has the item attached or by using the Special Trade Item.
It is a Tier 4 exclusive drop
Upgrades are items that can be used to improve equipment, by adding new attributes. Upgrades can be found in the game's Inventory, from karma sellers, or as rewards for events. They can be added as upgrades to armors, weapons trinkets, gathering tools and trinkets. Upgrades can be placed into any slot on an equipped unit. However Related Home Page require a product above certain levels to be added. The majority of upgrade components can be modified however the original component will be destroyed. There are a few kinds of upgrade can be salvaged by using salvage kits that are of high quality, such as the Black Lion Salvage Kit and Ascended Salvage Tool.
Upgrades can be achieved by merging an upgrade item into the item it's placed into, or by rerolling the item using an token that rerolls. The upgraded item will have the same stats as the first, however, it will be upgraded to a higher level and tier. Each item has an upgrade level maximum and a level minimum. The rarity of the item and its level determine the tier. Each tier is broken down into three levels, and each level comes with a distinct set of upgrade costs and bonuses.
Generally upgrading an item will boost its primary stat by a predetermined amount, and also provide a random extra stat. The cost to upgrade an item is increased as its tier increases however there are discounts available for certain items, and the number of upgrades required decreases with each step.
The upgrade item is obtainable by spinning Photo Discs at PokeStops or Gyms. However, it has a very low chance of dropping every day. It is obtained by spinning at minimum one PokeStop Photo Disc or gym Photo Disc every day to earn seven days, as well as through Research Tasks and task-specific to events.