Last week saw the release of iOS 18.3 which brings improvements for several iPhone features. However, users who want to downgrade back to iOS 18.2.1 are in for some bad news as a report from Macrumors has confirmed that Apple is no longer signing the older software.
Apple stopping users from downgrading isn't new, it's a standard practice to make sure users' devices are up to date. Usually, when Apple releases a new version of iOS, it keeps the original version signed for a week or two. This allows users to easily test the features with the option to downgrade to a more stable version of the software. However, as soon as it removes the signature, downgrading is impossible as the servers can't verify the older OS.
