You can save the SHSH blobs for an iOS version only if Apple is still signing the firmware. So if you want to restore to iOS 11.1.2, then you will need iOS 11.1.2 SHSH2 blob. As mentioned earlier, for this process, you need the SHSH2 blobs for the iOS version you want to downgrade.This process will erase everything on your device. RELATED : iOS 16.4 Release Time In Your Time Zone Requirements: To increase your chance of success you should have already jailbroken your iOS device and have 10GB free hard disk space. For this tutorial, I use iPhone 5s model and will refer to iOS 11.0.3 since this version doesn’t have the terrible gyroscope bug which is present in iOS 11.1.x. Upgrading or downgrading unsigned iOS can only be done when you have correct SHSH blobs for your target iOS version and the signing window for public beta iOS is still open regardless the current signed released iOS. Read this tutorial thoroughly over and over again until you can make sense of these steps.
So please proceed with caution and at your own risk. This tutorial is not for the faint-hearted one and there’s a possibility that you may fail and be forced to restore into latest iOS, thus losing your chance of jailbreaking. So you could restore (essentially upgrade or downgrade) to iOS 11.1.2 which can be jailbroken using Electra jailbreak or LiberiOS jailbreak using this method. So the ability to upgrade or downgrade to an unsigned iOS firmware version can be very useful if you want to jailbreak your iPhone, iPad or iPod touch. It not only releases new software updates, that fixes the vulnerabilities used by the jailbreaks, it also stops signing the older iOS firmware file, which prevents users from downgrading back to the older iOS version that can be jailbroken.
This guide has been written by Albanus Alain, one of our readers, who has successfully restored his iPhone 5s to iOS 11.1.2 and then back to iOS 11.0.3.Īfter releasing an iOS software update, Apple usually stops signing the older iOS firmware version in two weeks. Apple has used this strategy to keep jailbreakers at bay. Here’s a step-by-step guide on how to restore to an unsigned iOS firmware like iOS 11.1.2 which can be jailbroken.
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