My mom recently bought an iPhone X on sale at Costco and is trying to restore it from an iCloud backup from her 8+. The problem is that her 8+ is running 12.3.2 and the newest update for the X is only 12.3.1, so the option to update from the 12.3.2 is grayed out on the X since the update is from a newer version of iOS. Is there anything she can do to get this backup to work with the X?