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NEW iOS 13.1.3 / 13 / iOS 12 / 11 / 10 Nonce Setter FOR iOS DOWNGRADE RELEASED
In today's video, we're discussing the release of a universal Nonce Setter for #iOS 13.1.3 all the way down to iOS 9 or even iOS 8 for all the devices compatible with CheckM8 BootROM exploit released by @axi0mX, which are the iPhone 4S all the way up to iPhone X and everything in-between. The Nonce Setter is a tool required if you wanna downgrade from an iOS version to another, especially to an older jailbroken one. It allows you to set the nonce generator string from your saved SHSH2 blobs into the device NVRAM to allow the device to use that particular blob during a restore, even if Apple no longer signs the version you try to restore to.

Previously, such tools existed, but they were based on tfp0 Kernel exploits. My tool, called GeoSetter is one of these. These tools predate the #CheckM8 exploit and were the only way to perform a downgrade with SHSH2 blobs. The tool released today, however, doesn't require tfp0 or even a jailbreak to exist. This means that you can, for example, set the Nonce Generator on the latest iOS 13.1.3 right now on your iPhone 7, iPhone 7 Plus, etc. with no jailbreak needed.

SEP (Secure Enclave Processor) and the Baseband may still pose some issues as they need to be compatible to avoid breaking them, but other than that, we finally have a universal nonce setter which will help a lot the jailbreak community.

hello, am i able to downgrade my ipad mini 2 from 12.4.1 to 12.4 without 12.4 shsh? since i upgraded it ota directly to 12.4.1
Nah. @BloodLancet Shsh2 blobs are a mandatory component for firmware mobility.
Unless you’re saying you did a 12.4 > 12.4.1 ota upgrade yourself

(10-28-2019, 11:23 PM)BloodLancet Wrote: hello, am i able to downgrade my ipad mini 2 from 12.4.1 to 12.4 without 12.4 shsh? since i upgraded it ota directly to 12.4.1
Hello i'm new here, i have an Xs Max on 12.0.1 with ios 13.3 SHSH blob saved. how can i update to 13.3 now that it seem 13.3 is no longer signed by apple. I use a windows PC. Thank you.

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