How to save SHSH blobs using the new TinyUmbrella beta: However, SHSH blobs could be relevant again thanks to a new exploit discovered by iH8sn0w, developer of Sn0wbreeze andPosixspwn jailbreak tools, indicating that it may be possible to downgrade to an older iOS version even if Apple was not signing it using SHSH blobs. So for example: if it is not possible to jailbreak iOS 8.4, then you could downgrade to iOS 8.3 even though Apple is not signing iOS 8.3 firmware file, and use TaiG jailbreak tool to jailbreak your device.
So you cannot restore to 6.x or higher using SHSH blobs except on iPhone 4, iPhone 3GS, and iPod touch 4G (and iPad 2 to iOS 5.x if you have iOS 4.x and iOS 5.x SHS blobs). However, Apple closed the loophole that allowed users to use the SHSH blobs to downgrade to an older version in newer devices (iPhone 4S and later) and also in iOS 7 or later. Tools like TinyUmbrella allowed you to save the SHSH blobs while the firmware is still being signed, so you could use it to create (stitch) a pre-signed IPSW file using tools like Redns0w, which could then be used to restore your device with an iOS version that Apple was no longer signing. With the imminent release of iOS 8.4 on Tuesday, it may be a good idea to save iOS 8.3 SHSH blobs using TinyUmbrella, so that you have the option to downgrade to iOS 8.3 even after Apple’s stops signing the iOS 8.3 firmware file.īefore we go into the details on how to save the SHSH blobs, and other details, here is some background about SHSH blobs, and why they’re important.Īs you probably know, Apple allows you to restore only to the latest iOS versions to prevent users from downgrading to an older iOS version, which would have made it easier to jailbreak the iOS device.Īpple stops signing the firmware files (by not providing SHSH blobs) for older iOS versions to prevent users from downgrading to the older version.
0 kommentar(er)
