Redsn0w will be coming soon to tethered jailbreak iOS 6 on A4 devices - GSM-Forum

riajul1988 · 09-20-2012, 15:35

Apple has released iOS 6 a few hours ago. Shortly after the release MuscleNerd of the iPhone Dev-Team has sent several tweets about downgrading from iOS 6 to iOS 5.x.x. Now, Here is the official iPhone Dev-Team statement on the new iOS 6.

iPhone Dev-Team Official Statement

A few months back we released a redsn0w feature that lets you downgrade A5+ devices from 5.1.1 to anything lower (if you had saved blobs). Unfortunately once the 5.1.1 window closes, redsn0w’s 5.x downgrade feature will no longer work. Most A5+ users will not be able to downgrade. So if you’re an A5+ owner up at 6.0 when the 5.1.1 window closes, you’ll be stuck there without a jailbreak for now.
We’re happy to report there are some serious deficiences in the 5.x restore process that are permanently exploitable. They’ll never be fixable by Apple because they’re all self-contained in the 5.x IPSWs. Here’s the breakdown:

A4 devices and 3GS will always be downgradable (and jailbreakable) with saved blobs due to limera1n. The tethered iOS6 jailbreak for those devices (and untethered for old-bootrom 3GS) will be out when Cydia and other important pieces are all working properly.

iPad2 owners who have both 4.x blobs and 5.x blobs will always be able to downgrade to those versions, even once you come up to 6.0 and the 5.1.1 window closes (don’t do that yet though!). You need both 4.x and 5.x blobs to qualify for the 5.x downgrade even though you only wish to downgrade to 5.x (you need only your 4.x blobs to downgrade to 4.x)

iPad3, i4S (and iPad2 owners who don’t satisfy #2) will always be able to RE-restore the current 5.x OS that’s already on their device. So if you’re at 5.1.1 when the window closes (and you’ve saved your blobs), you’ll always be able to RE-restore to 5.1.1 again. This makes the 5.1.1 jailbreak a lot less fragile — you don’t have to worry about messing up your install with funky extensions or getting into a boot loop, because you can always RE-restore from 5.1.1 to 5.1.1 again (or from 5.0.1 to 5.0.1 again, etc). But once you fall off the 5.x train by restoring to 6.x, you’ll be stuck there until the next jailbreak.

Please be aware that RE-restores and iPad2 downgraded devices will always end up with the latest baseband (not the one that came with that firmware). So don’t go near any of this if your unlock depends on the baseband version.
All of these features will be released shortly in a new version of redsn0w. In the meantime please be sure you have your 5.1.1 blobs and stay at 5.1.1. Happy iOS6 day!

In short words, If you have an iOS Device and it isn’t iPhone 4S, iPad 2 or new iPad you can update to iOS 6 and downgrade back to iOS 5.x.x as long as you have your 5.x.x SHSH blobs saved. If you have an iPad 2 you can downgrade to iOS 5.x.x only if you have your iOS 4.3.3 SHSH blobs.
Also, The statement confirmed that an update to Redsn0w will be coming soon to tethered jailbreak iOS 6 on the A4 devices.

09-20-2012, 15:35	#1 (permalink)
riajul1988 No Life Poster Join Date: Feb 2011 Location: (BaNgLaDeSh).(U.A.E,AD) Posts: 1,952 Member: 1511441 Status: Offline Sonork: 100.1604057 Thanks Meter: 1,162	Redsn0w will be coming soon to tethered jailbreak iOS 6 on A4 devices Apple has released iOS 6 a few hours ago. Shortly after the release MuscleNerd of the iPhone Dev-Team has sent several tweets about downgrading from iOS 6 to iOS 5.x.x. Now, Here is the official iPhone Dev-Team statement on the new iOS 6. iPhone Dev-Team Official Statement A few months back we released a redsn0w feature that lets you downgrade A5+ devices from 5.1.1 to anything lower (if you had saved blobs). Unfortunately once the 5.1.1 window closes, redsn0w’s 5.x downgrade feature will no longer work. Most A5+ users will not be able to downgrade. So if you’re an A5+ owner up at 6.0 when the 5.1.1 window closes, you’ll be stuck there without a jailbreak for now. We’re happy to report there are some serious deficiences in the 5.x restore process that are permanently exploitable. They’ll never be fixable by Apple because they’re all self-contained in the 5.x IPSWs. Here’s the breakdown: A4 devices and 3GS will always be downgradable (and jailbreakable) with saved blobs due to limera1n. The tethered iOS6 jailbreak for those devices (and untethered for old-bootrom 3GS) will be out when Cydia and other important pieces are all working properly. iPad2 owners who have both 4.x blobs and 5.x blobs will always be able to downgrade to those versions, even once you come up to 6.0 and the 5.1.1 window closes (don’t do that yet though!). You need both 4.x and 5.x blobs to qualify for the 5.x downgrade even though you only wish to downgrade to 5.x (you need only your 4.x blobs to downgrade to 4.x) iPad3, i4S (and iPad2 owners who don’t satisfy #2) will always be able to RE-restore the current 5.x OS that’s already on their device. So if you’re at 5.1.1 when the window closes (and you’ve saved your blobs), you’ll always be able to RE-restore to 5.1.1 again. This makes the 5.1.1 jailbreak a lot less fragile — you don’t have to worry about messing up your install with funky extensions or getting into a boot loop, because you can always RE-restore from 5.1.1 to 5.1.1 again (or from 5.0.1 to 5.0.1 again, etc). But once you fall off the 5.x train by restoring to 6.x, you’ll be stuck there until the next jailbreak. Please be aware that RE-restores and iPad2 downgraded devices will always end up with the latest baseband (not the one that came with that firmware). So don’t go near any of this if your unlock depends on the baseband version. All of these features will be released shortly in a new version of redsn0w. In the meantime please be sure you have your 5.1.1 blobs and stay at 5.1.1. Happy iOS6 day! In short words, If you have an iOS Device and it isn’t iPhone 4S, iPad 2 or new iPad you can update to iOS 6 and downgrade back to iOS 5.x.x as long as you have your 5.x.x SHSH blobs saved. If you have an iPad 2 you can downgrade to iOS 5.x.x only if you have your iOS 4.3.3 SHSH blobs. Also, The statement confirmed that an update to Redsn0w will be coming soon to tethered jailbreak iOS 6 on the A4 devices.