I can't restore my backup from iPhone 8 to iPhone X
I have a stored backup on my iMac 2014. I have a new iPhone X that I traded for a iPhone 8. I have the iMac and the iPhone X now. However, whenever I try to restore the backup, it says that I need to update the phone to the newest version. I updated both the iMac and iPhone X. It still has that error. What can I do to get my backup? Is there a way to drag the file to the X?
iPhone X, iOS 13