Apple Stops Signing iOS 18.2.1, Preventing Downgrading
Apple Stops Signing iOS 18.2.1, Preventing Downgrading Apple today stopped signing iOS 18.2.1, which means that iPhone users who have upgraded to iOS 18.3 can no longer downgrade to the prior version of iOS 18. Apple released iOS 18.3 a week ago. When new versions of iOS are released, Apple stops signing the prior version after a week or two. An update that is not signed is not able to be installed…