Apple closes the iOS 16.3 authentication channel. IOS 16.3.1 has been upgraded and users can no longer downgrade.
Thanks to CTOnews.com netizens for the clues delivery! CTOnews.com February 21, Apple officially announced today that it will stop signing the iOS 16.3 update. This means that CTOnews.com users who have upgraded to iOS 16.3.1 update (released on February 13) will not be able to downgrade to this version.
Apple will stop signing the old iOS system some time after the new version is released, encouraging users to upgrade the system and make sure it is up-to-date.
Interested CTOnews.com users can visit the link below to read the introduction of the main functions brought about by the update of iOS 16.3 and iOS 16.3.1.
Related readings:
"Apple iOS / iPadOS 16.3 official release: iCloud Advanced data Protection, Apple ID Security key online"
"Apple iOS / iPadOS 16.3.1 official release"
