I'd say something, but no, he's never had this kind of problem before, he can't just train himself out of it, and apparently, just "believing" doesn't work, either. In fact, it's a power that effectively NO ONE knows, so no one can help him, either. Basically, he's fucked.
HOWEVER, it is not like him to give up so easily. If one thing doesn't work, he often has something else up his sleeve. True, if I had something like this, I'd want to know why it isn't working, but if it's not working, it's not working. Do something you know will work.