![]() ![]() Tools like TinyUmbrella have allowed you to save the SHSH blobs, so you can use it to create (stitch) a pre-signed IPSW file, which could then be used to restore your device with an iOS version that Apple was no longer signing.Īpple has closed the loophole that allowed users to use the SHSH blobs in newer devices (iPhone 4S and later) and also in iOS 7 or later. For example: If Apple allowed users to downgrade their device, they could downgrade back to iOS 8.1.2, which was the last iOS software update that could be jailbroken using the TaiG and PPJailbreak.Īpple stops signing the firmware files (by not providing SHSH blobs) for older iOS versions to prevent users from downgrading. Apple allows you to restore to the latest iOS versions only to prevent users from downgrading to an older iOS version, which would have made it easier to jailbreak the iOS device. ![]()
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