Can't evolve my golbat (lvl100+full happy)

[Kingofcourt]

Hi,

I'm not able to make evolve my golbat to Crobat with mysterious candy. I tried to faint him and then fight some pkmns to make it full happy back, but mysterious candy doesn't works.

It's a shiny Golbat #51347272  can you help me please?

[Norex]

You have to faint it in a wild battle, that is important.

Do that and get it to max happiness again by beating some pokemon. You dont need to level it up usually or give a mysterious candy for happiness evolutions.