I am having trouble transfering my Mew to the Bank?

Question

I got it from a trade. It doesn't appear to be a hack as it is registering in the pokedex of Black and White 2 but it is saying that the OT is bad? What does that mean and can I fix it?

Answer 1

Just because it reads in the Pokedex doesn't mean it's not a hack.

However, if this Mew is legit, then there must be something wrong with the Bank itself, since I've heard people complaining about how their legit Pokemon they caught/raised not transferring. Perhaps this is the same case with your Mew.

If it doesn't transfer, than there's nothing you can really do to fix that. Sorry about that. :(

Answer 2

It could be that it is hacked. You could try to deposit it in GTS if you can deposit it Mew should be Legit or you could check if it have any unlegitimate moves or stats. It could be someone hacked it as a Event Pokemon but the OT doesn´t match.
It could be that Mew got 255EVs in something so you could try to remove them and can you say Nature Pokeball EVs IVs What level it was met or What location it was caught so I can help a little more