Apple Stops Signing iOS 9.2 Firmware For Certain iOS Devices
Apple has closed the signing window for iOS 9.2, which has been reported to affect the iPhone 4s, iPad 2, and the iPad with Retina display. Like always, more devices will be affected as time progresses with the enhancements of the latest iOS builds.
As of this writing, Apple has ended the signing process for iOS 9.2 firmware for the iPhone 4s, the iPad 2 Wi-Fi only, iPad 2 Wi-Fi only & GSM cellular, iPad 2 Wi-Fi only & CDMA cellular, iPad with Retina display 3rd-gen with Wi-Fi & Verizon cellular, and iPad with Retina display 3rd-gen with Wi-Fi & AT&T cellular. These device will not be able to downgrade to iOS 9.2, and the same should happen with newer devices later down the line.
The company uses a special algorithm with their OS in iTunes to ensure that users stay on modern firmware. This process also affects jailbreakers who are often forced to newer firmware versions when problems start to pop-up and an iTunes restore becomes necessary, which stops users from going back to a previous builds of iOS.
These iOS build killers for older variations ensure that users are on the most improved and secure versions of iOS, and that both old and new devices are running on the best of what Apple’s updates have to offer. However, with the company stopping the signing process with iOS 9.2 shouldn’t be that much of a big deal, since iOS 9.2 and iOS 9.2.1 are almost one in the same.
Although iOS 9.2.1 offers more security fixes and performance improvements over the older iOS 9.2, no major new features were brought forth into iOS 9.2 and iOS 9.2.1, meaning that there should be no reason to fret about the ceasing of iOS 9.2’s signing, especially since there is no jailbreak for iOS 9.2.
Something worth mentioning that might be helpful to those looking to stay up to date with the signing and ceasing of iOS builds, you can check out IPSW.me to see the status of every iOS build compatible with old and new iOS devices, which is regularly updated to reflect any new changes.
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