how do you rotate the ford ecosport side mirror to its original position?

It may be broken a needs to be replaced. Sorry. But mirrors are designed to fold in toward the the rear, like when you hit the pole at the drive-through window, then they will be able to be popped back in place pushing forward on the end...but not when hit going in reverse and forced that way, That's how my Toyota is and a Ford my friend has anyway. Matter of fact it's a Fiesta he has

Fordnut is correct,going to have to bite the bullet,and replace it,