Apple has stopped signing iOS 15.3 and downgrading is no longer possible
iPhone users will no longer be able to install iOS 15.3. To get the latest version of iOS, you’ll need to have iOS
Older iOS versions are known to be unsigned by Apple, so customers can be guaranteed they are running
the most recent version of Apple’s iPhone software. In addition to new features and bug fixes, newer version
Only iOS 15.3.1 is now available as a restore option for everyone who tries to restore their iPhone. Even if you’re not a beta tester,