Because Apple no longer authenticates this software, you cannot install it even if you have the original firmware file. Why You Can't Download iOS 13.7
Downloading iOS 13.7 for an Go to product viewer dialog for this item. Download iOS 13.7 for iPhone SE
is currently impossible through official Apple channels. Apple stopped signing iOS 13.7 on , shortly after the release of iOS 14. Because Apple no longer authenticates this software, you
If your iPhone SE is already on a newer version (like iOS 14 or 15), you cannot revert to iOS 13.7. you cannot revert to iOS 13.7.