Okay, I just traded my Gurdurr for my friends Boldore, and this site, Pokedex 3D and the walkthroughs on youtube said if we traded these two, they would evolve. It's been 1 week now, and no eveloutions.
Is this a glitch, or doesn't it work anymore?
if you know why, please tell me!
I really want a Gigalith!
Check to see whether they(both) are holding an Everstone, for it stops evolution, by level and trade alike. If they aren't, they're probably hacked or something. It can be a glitch if it is on a ROM, but otherwise, a glitch is very unlikely.