The Upgrade is a device that was produced by Silph Co. A transparent device that is filled with all sorts of data, it's true intentions are not immediately known.
What is known about the Up-Grade is that a Porygon will evolve into a Porygon2 if it is traded while holding an Up-Grade. It still has to hold a different item and be traded in order to evolve again, however.
- Gold/Silver/Crystal: Silph Co.
- FireRed/LeafGreen: Team Rocket's Warehouse (Five Island); Trainer Tower (awarded for clearing Single Mode)
- Diamond/Pearl: Eterna City (Gift from Professor Oak)
- Platinum: Route 224; Team Galactic Building (Eterna City)
- HeartGold/Soul Silver: Silph Co.
- Black/White: Route 13 & Route 15
- Pokémon Battle Revolution: 9600 Pts
Related ThreadsTo anyone who has recieved the Berry Upgrade - last post by @ May 22, 2004
HELP! Mr.Medal guy keeps upgrading my medal box and won't stop! - last post by @ Oct 9, 2014
mega ring upgrade - last post by @ Feb 2, 2014
Gym Upgrades - last post by @ Apr 29, 2012
What the...! Stupid Upgrades! - last post by @ Oct 20, 2004