After the release of iOS 16.4.1, Apple has stopped signing iOS 16.3.1 to prevent iPhone users from downgrading to that software version.
After the release of iOS 16.4.1, Apple has stopped signing iOS 16.3.1 to prevent iPhone users from downgrading to that software version.
On February 13, iOS 16.3.1 was released as a minor update containing bug fixes, security improvements, and enhanced Crash Detection optimisations for iPhone 14 models, reports MacRumors.