You can no longer downgrade from iOS 9.1 as Apple has stopped signing iOS 9.0.2Apple has stopped signing iOS 9.0.2 firmware file, just over a week after releasing iOS 9.1 which killed Pangu Jailbreak. This means that users won’t be able to downgrade from iOS 9.1 to iOS 9.0.2 and jailbreak your device.
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You can no longer downgrade from iOS 9.1 as Apple has stopped signing iOS 9.0.2