Save SHSH Blobs For Your iPhone, iPad or iPod Touch
Welcome to iOSDoc section How To Save SHSH Blobs. Here, you’re going to find out everything you need to know about SHSH blobs and how to save them on your iPhone, iPod Touch or why not your lovely iPad. All you have to do is scroll for your corresponding guide of your iOS device, which you can easily find on the bottom of this SHSH blobs section. Now you can relax and read one of our easy to follow guides on how to save SHSH blobs on your iPhone, iPod Touch, iPad or Apple Tv.
Tip #1: Stay tuned. As soon as new firmware versions are released, we will update this section, so you can have access to the latest how to save SHSH blobs guides for your iOS device.
Tip #2: Be careful, because you can save your SHSH blobs only for firmware versions that Apple’s signing.
FAQ
Why Is It Good To Save SHSH Blobs?
You have to get used to saving SHSH blobs, especially if you have a Jailbroken iPhone, i Pod Touch, iPad or Apple TV. Let’s just say that you got used to your curent firmware version that you are using and updating to a newer firmware version would be a disaster. Well, you can say that you are a time traveler now, because if you saved your SHSH blobs you can downgrade to your favorite firmware version. Because downgrading isn’t always that fun for everyone, you can find more information about downgrading on How To Downgrade section.
SHSH blobs are the perfect tech implemented by Apple which puts a restriction on the ability to downgrade to a lower firmwire, so this is why you need to save them. A request gets sent to apple’s servers to verify that the firmware version your iOS device upgrades or restores to is the same or newer than the previous firmware version one was running. Everytime when you save the SHSH blobs you can make Apple act as if the firmware version you want to downgrade is truly valid.
Understanding The APTiket
The other techonology implemented by Apple to prevent downgrading are the APTickets, as if there weren’t enough limitations already to downgrading iOS devices. Essentially APTickests are the next generation SHSH blobs. Obviously, APTickets are much more secure, because every time you try to restore or upgrade your Apple device (iphone, iPod Touch or iPad) a request gets sent to Apple’s servers to confirm the APTickets. Differently from the SHSH blobs, a fresh new APTicket is generated using a random string, whereas in the case of SHSH blobs, they submit the same one already stored on the server. In the near future APTicktes will be branded as the full replacements of SHSH blobs and this will happen for sure when the iPhone 4S stops being listed as a supported device.
When you have one of the newer firmware versions you will see that when you try to save your SHSH blobs you’ll automatically save your APTickets. It is easy to see that with the implementations of APTickets downgrading is a whole lot more harder, if not impossible, to occur. Luckily the always on the go Jailbreak community are continuously finding new exploits and it will probably be just a matter fo time until downgrading devices on newer firmware versions is truly supported. Hence, it is important that in the present time you save your SHSH blobs and APTickets unspecific of whether it is possible to downgrade or not possible.
Understanding The SHSH Blob
Every time you restore your Apple devices such as iphone, iPod Touch, or iPad through iTunes your gizmos phone home and maes sure that it is allowed to be restored to a specific firmware version. Basically the SHSH blobs that were put in are a hasg signature system made to enforce this limitation. OK, let’s go through this together – a SHSH was introduces by an SHS formula with three or four TSS keys:
1. The device model (for example, iPhone 4 GSM)
2. The firmware version which is being signed (for instance, 6.0.1)
3. The device’s ECID, an unique identifier for every Apple device.
A Plist file is present upon the shipping of every Apple device; this file contains SHSH Blobs for the very different parts of the firmware. Essentially, what these blobs are, they are gatekeepers which control whether or not a firmware is restorable. Every time you downgrade or upgrade your iPhone, iPod, Touch or iPad, new SHSH blobs have or be created due to the fact that one of the parts of the SHSH formula is the firmware version.
Apple refuses to generate the new hash during the downgrade which means that the new SHSH blobs cannot be generated. In order to make things clearer, it must be said that for the prevention of firmware restores Apple signs one firmware prevention at a time, which is clearly the latest available version of firmware. On the occasion that you restore to a lower firmware version an error will appear as Apple is not signing that specific firmware version any longer.
How To Save SHSH Blobs
Although there are many tools out there, the most common ones that you can to save your SHSH blobs on iPhone, iPod Touch, iPad or even Apple TV are TinyUmbrella, iFaith and RedSnow. Unfortunately, if you want to use TinyUmbrella or RedSnow to save your SHSH blobs on your iOS devices, only if Apple is signing the firmware that you are operating. Because Apple is signing only the latest firmware versions, you will not be able to save SHSH blobs on your iOS device by using TinyUmbrella or RedSnow when a new version is released by Apple. For example if the version that you are running is iOS 6.0 and Apple just released iOS 6.0.1 is game over for you. However all you need to do in this situation is updating to the latest firmware version that Apple is signing (in our example 6.0.1).
Let’s talk about iFaith now, because if this actually happened to you, the only tool that can save you is iFaith. iFaith is not like TinyUmbrella or RedSnow, because it’s using a different method to save your SHSH blobs that gives it the freedom to save your SHSH blobs whatever Apple is signing it or not. We could say that iFaith proved itself to be more reliable even when it comes to downgrading.
This is one of the numerous articles we’ve written about SHSH blbobs on your iPhone, iPod Touch, iPad or Applet TV using TinyUmbrella, iFaith, RedSnow and various other applications that run directly to any Jailbroken devices. Be mindful that even if a guide mentions and older firmware version than the one you are already running this process remains the same one. Because of the obvious repetitiveness which we would reach, we will not release a new guide for each firmware version.
Save Your iOS 6.0.1 SHSH Bolbs With TinyUmbrella 6.01.00
How to Downgrade iOS 6.0.1 to 5.1.1 Using Redsn0w and SHSH Blobs
