Originally Posted by marvelrobbins
I already suggested they will go with the offscreen during first Class Magneto helped
Xavier build a new Cerebro at mansion before going to Cuba explanation.
It was me who suggested that. But it can't have been operational before they went to Cuba or they would have used it to find Shaw.
If we are going with this explanation, then the machine was not completed at that point and it was only later that Xavier and Hank finished it.
We don't even know yet if Cerebro will feature in the story. But Charles would want one there if he is to recruit other mutants to his school.