Magneton can only be evolved into Magnezone when you're within range of a PokeStop that has an active Magnetic Lure Module. Magnetic Lure Modules were added to Pokemon Go in 2019 along with Glacial and Mossy Lure Modules.

How do you evolve Magneton into Magnezone?

To evolve Magneton into Magnezone, you'll need to be around a Magnetic Lure Module placed on a PokéStop. Once you're in its range, you can evolve it using 100 Magnemite Candy. The prompt to evolve your Magneton will turn green from red once you can evolve it.

Why can't I evolve my Magneton in Pokemon go?

If you want to evolve Magneton in Pokemon GO, you're going to need to use a Magnetic Lure Model. ... You'll be able to trigger the Magneton evolution process so long as you meet the criteria of having enough candy and having an active Magnetic Lure that you're camped out next to.