expression
no, not like that (but like this)
Used to correct a misunderstanding or to clarify that something is different from what was just said or assumed. Often followed by an explanation of the correct way.
そうじゃなくて、こうやってやるんだよ。
No, not like that; you do it like this.
そうじゃなくて、私が言いたいのは別のことです。
That's not what I mean; I'm trying to say something else.