Get a porygon 2 make it hold the upgrade and then trade. -Hope I Helped!
in the silph co. building.
upgrade to the national dex and see and catch every Pokemon
Give porygon an upgrade and trade it it evolve it. And of course you have to trade it back. Try this in Pokémon go!
its in the team rocket warehouse on five island
You must get an upgrade for the Radio PokeGear app and use it.
You can use Upgrade to evolve your Porygon into Porygon 2. To do this. Make your Porygon hold the Upgrade in a trade. (This will only work if trading it to a G/S or newer game.)
the upgrade is used to evolve porygon into porygon-z
yes
cancalave city
Silph Co.
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Pokemon Tower. Why?You have to beat the Trainers Tower and the guy on the roof top will give you Upgrade.
Get a porygon 2 make it hold the upgrade and then trade. -Hope I Helped!
You have to buy Pokemon Platinum. (Its a separate game!)
You get it from professor oak it allows one rare Pokemon to evolve. And the answer before this was the real life type of upgrade :P
You can use it to upgrade stats like protein or hp up, or you can sell it for 4900$ so.... your choice