iOS 26.4 No Longer Signed by Apple, Blocking Downgrades From iOS 26.4.1

Apple today stopped signing iOS 26.4, so iPhone users who have updated to iOS 26.4.1 are no longer able to downgrade to the ...
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Apple rolls out second iOS 26.4 beta 3: How to install update, which iPhones support it

iOS 26.4 beta 3: Apple has released a revised version of iOS 26.4 beta 3 for developers, just three days after the initial build was rolled out. The updated build is now available as an over-the-air ...