The
iPhone 4S, the iPad 2 and the new 3rd-gen iPad have been out of the
downgrading scene for quite a while, courtesy their “secure” hardware.
But, the latest release of Redsn0w changes all that, and allows the
average Joe to downgrade their devices smoothly, without even requiring iTune
.
At this point however, it’s worth noting that the iPhone 4S can be downgraded all the way to iOS 5.0 from 5.1.1, same goes for the iPad 2, which means that you can essentially use Absinthe to untether jailbreak
both iPhone 4S and iPad 2 on 5.0.1, but the new 3rd-gen iPad can’t be
downgraded beyond iOS 5.1, since it is the version of iOS it originally
shipped with. This, combined with A5X processor in iPad 3 means that you
unfortunately cant jailbreak it as yet. And like I mentioned before, if
you have SHSH blobs saved for the version of iOS you want to downgrade
to for your device, only then the downgrade process is possible.
Before we begin, let’s go through the things you’ll need for the whole process:
- An iPhone 4S, iPad 2 or a 3rd-gen iPad whose SHSH blobs are saved on Cydia, or locally.
- The latest version of Redsn0w [Windows/Mac]
- 30-pin USB connector cable.
Note:
- If you don’t have your blobs saved for the version of iOS you want
to downgrade to, then following the this guide won’t do you any good.
Having your SHSH blobs saved is a key requirement for the whole
downgrade process to take place, otherwise it’s a no-go. If you ever
launched Cydia on iPhone 4S or iPad 2 while Apple was still signing iOS
5.0.1, then Cydia server could have them automatically saved for you.
- Due to the way this method works, it first upgrades your device to
the latest firmware version available, which in turn upgrades the
baseband too. Therefore all iPhone unlockers are advised to stay away
from this downgrade method.
- This Redsn0w version is designed to downgrade A5+ devices only, for A4 and below devices, use the older versions of Redsn0w.
All set? Let’s begin:
Step 1: Launch the new Redsn0w 0.9.11b1 (
Windows /
Mac).
Step 2: Connect your iOS Device to your PC or Mac using the 30-pin USB cable.
Step 3: Now, click on
Extras.
Step 4: You will be taken to a new screen, now click on
Even More.
Step 5: Click on
Restore.
Step 6: You should now see three different options on the screen;
IPSW,
Local and
Remote. Click on
IPSW, and point Redsn0w to the firmware file to which you want to downgrade to. Redsn0w will then ask you for the stock iOS 5.1.1 firmware.
Step 7a: If you have your blobs saved locally, then simply click on
Local and point Redsn0w to the .plist file containing the SHSH blobs for
your device. Move on to Step 7b if you don’t have your blobs saved
locally.
Step 7b: Click on
Remote if your blobs are saved on Cydia.
Redsn0w should automatically put your device into Recovery mode to fetch
the necessary files from Cydia’s servers.
Step 8: Click Next.
Step 9: At this point, Redsn0w will automatically stitch the SHSH
blobs to the IPSW firmware file which you provided, and then it will
automatically restore to it. Sit back, the process might take a while
depending on your PC or Mac.
Step 10: That’s it, you’re done.
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