iPhone Is There Any Way To Save An SHSH Blob For IOS 7?

DeathTheKid

macrumors member
Original poster
Aug 12, 2013
77
1
Is there anyway to back up IOS 7.0.3? In case, say in the future, if I need to do a restore on the phone to get it serviced and it updates to a version that doesn't have a jailbreak. I can revert back to 7.0.3 and just re-jailbreak.

The reason I ask this is because that is how I lost my last jailbreak. I was on IOS 6.1.2 and had to restore it because I needed the internal speaker serviced and it updated to 6.1.4.
 

darricksailo

macrumors 601
Dec 18, 2012
4,354
113
Is there anyway to back up IOS 7.0.3? In case, say in the future, if I need to do a restore on the phone to get it serviced and it updates to a version that doesn't have a jailbreak. I can revert back to 7.0.3 and just re-jailbreak.

The reason I ask this is because that is how I lost my last jailbreak. I was on IOS 6.1.2 and had to restore it because I needed the internal speaker serviced and it updated to 6.1.4.
1. you can use iFaith or redsn0w to grab your 7.x blobs

2. blobs are currently and have been useless on the iPhone 4S and up since iOS 6, no exceptions. Even if you had 6.1.2 blobs, you would still have to go to 6.1.4 (assuming that was the latest signed firmware at the time)
 
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DeathTheKid

macrumors member
Original poster
Aug 12, 2013
77
1
What device are you using?
I have an iPhone 5.

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1. you can use iFaith or redsn0w to grab your 7.x blobs

2. blobs are currently and have been useless on the iPhone 4S and up since iOS 6, no exceptions. Even if you had 6.1.2 blobs, you would still have to go to 6.1.4 (assuming that was the latest signed firmware at the time)
Thanks, I guess I will have hide to the Cydia Icon among other things if I need to take it to the Genius Bar for servicing. That is, if the current firmware version didn't have a jailbreak for it.
 
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roady

macrumors newbie
Jun 29, 2014
21
0
Since iOS7 launched, Apple no longer uses SHSH for IPSW authentication, so saving them is useless.
I've been trying to get my brain understand the concept behind this.

All I've read over the internet is that shsh blobs are useless from A5 devices onwards, but never got a clear picture.

Can someone help me out on this? Technical answer would be great :)
 
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dhlizard

macrumors G4
Mar 16, 2009
10,214
119
The Jailbreak Community
I've been trying to get my brain understand the concept behind this.

All I've read over the internet is that shsh blobs are useless from A5 devices onwards, but never got a clear picture.

Can someone help me out on this? Technical answer would be great :)
Apple now uses a different authentication since iOS7 was released. This applies to all devices which can be upgraded to iOS7 (iPhone 4 and everything newer).

While you can still save your SHSH for iOS7, it seems unlikely there will ever be a need or procedure to be able to use them for firmware manipulation.
 
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roady

macrumors newbie
Jun 29, 2014
21
0
Thanks for the input.

Does this mean that since A5 devices, people haven't been able to find an exploit in bootloader thereby making shsh blobs useless?

Or does this mean that while downgrading/upgrading iOS, apple earlier used to fetch some packets to allow the same, but now it's using some different method altogether?
 
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darricksailo

macrumors 601
Dec 18, 2012
4,354
113
Thanks for the input.

Does this mean that since A5 devices, people haven't been able to find an exploit in bootloader thereby making shsh blobs useless?

Or does this mean that while downgrading/upgrading iOS, apple earlier used to fetch some packets to allow the same, but now it's using some different method altogether?
it's been useless since A5 devices because there hasn't been a bootrom exploit (which allows you to downgrade with SHSH blobs)

on the other hand, even with SHSH blobs, iOS 7 does not use that for authentification anymore so any iOS 7 blobs are useless for any device (doesn't matter if it's a pre or post A5 device)
 
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curiosity

macrumors regular
Sep 3, 2013
188
0
There's still hope. In April, winocm has released some overly complicated and not well documented downgrade tool collection, and a month ago the posers from doulCi team have uploaded an undocumented YouTube video that shows an iPhone 4S on iOS 5.1.1. Sadly without proof, but their other unrelated project seemed to have worked for some people. They said an explanation is coming "soon". Let's hope those guys are not just posing but also working.
 
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