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Downgrade (6.x->5.x) or RE-restore (5.1.1->5.1.1) U'r A4,A5&A5X Devices |
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09-19-2012, 11:31 AM
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#1
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Sitlay is offline
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Downgrade (6.x->5.x) or RE-restore (5.1.1->5.1.1) U'r A4,A5&A5X Devices
Today marks the public release of iOS6! For those devices capable of running 6.0, the 5.1.1 SHSH blob signing window will soon close, so it’s very important that you backup your 5.1.1 blobs now while you still can. We advise you do it for every device you have (see This tutorial if you don’t know the process).
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) 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 downgrade even if you only wish to downgrade to 5.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!
Original TXT
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Kill ME,I'm Using iPhone Without Jailbreak 
What I'm using it? 
You can request me Factory unlock for 3,Denmark | 3 & Voda,Australia | Telenor,Norway | AT&T,America 4,4[s],5 | SFR,France 4,4[s]
Note: Factory unlock service is paid. 
Last edited by Sitlay; 10-14-2012 at 01:16 AM.
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73ullet (09-19-2012), ADITIPATEL (10-01-2012), Aerobahn (09-19-2012), AnG (09-29-2012), AppleHacker (09-19-2012), atif_khan359 (10-01-2012), b7issh (10-03-2012), batangpeklat (09-19-2012), bianchin69 (09-19-2012), bigs (09-21-2012), bimmerme (09-19-2012), Bruteoutlawz (09-20-2012), creasy (10-09-2012), dcarter33 (09-22-2012), de_Genova (10-09-2012), dohc24v (09-21-2012), drndsdrnds (10-06-2012), dr_death (09-19-2012), ezkore (09-19-2012), Fight9 (10-09-2012), gkmltd (10-06-2012), hemant (09-19-2012), howard1 (09-19-2012), Jenny33 (09-23-2012), jonis (09-22-2012), JuniorPhatFarm (09-20-2012), Keep123 (09-19-2012), leeroy (09-20-2012), liljhayson (10-02-2012), lolroflmywaffle (09-24-2012), mickish1953 (09-19-2012), mmphone (09-20-2012), Paradroid (09-21-2012), qnc (10-04-2012), Radeon30 (09-20-2012), rontorbay (09-19-2012), sailenyau (09-20-2012), SUPERMAN1979 (09-19-2012), Trenton Sy (03-03-2013), vestonind (09-19-2012), victor (10-03-2012), Waylon123 (09-20-2012), WhyNotCallMeRo (09-20-2012), xtremeuploader (09-19-2012) |
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09-19-2012, 04:16 PM
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#2
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iPhoneaholic
edan1979 is offline
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lucky me that i skip 4s... :P
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09-19-2012, 07:10 PM
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#3
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Rockin my Jailbroken i5
bianchin69 is offline
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i wonder why ipad 2 and 4s need 4x and 5x blobs to restore to 5x?? 
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09-19-2012, 07:21 PM
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#4
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iPhoneaholic
batangpeklat is offline
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Thank you so much for a very very clear explanation sir!!!...
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09-19-2012, 09:24 PM
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#5
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SiNful Addict =P
AppleHacker is offline
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Quote:
Originally Posted by bianchin69
i wonder why ipad 2 and 4s need 4x and 5x blobs to restore to 5x?? |
no there is no need of 4x shsh to RE-restore to 5.1.1
you will need if u want to downgrade
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09-20-2012, 08:19 AM
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#6
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Jailbroken
kli821 is offline
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Very nice little summary
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09-20-2012, 11:43 AM
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#7
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Obsessive iPhone Disorder
Bruteoutlawz is offline
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So us 4s users will be able to restore to 5.1.1 if we are on 5.1.1? am i reading that right?
If so thats great news because i couldnt care less about ios 6 at the moment.
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09-20-2012, 12:13 PM
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#8
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iPhone Fanatic
Radeon30 is offline
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Yeahhh I can go up and down as I please
But i will get an iPhone 5 eventually
Thx for the info Sitlay.
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09-20-2012, 01:45 PM
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#9
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Sitlay is offline
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Quote:
Originally Posted by Bruteoutlawz
So us 4s users will be able to restore to 5.1.1 if we are on 5.1.1? am i reading that right?
If so thats great news because i couldnt care less about ios 6 at the moment. |
Yes you are right 
If you have SHSH blobs for 5.1.1 and your device is on 5.1.1 you can restore it to it
but once you updated your A5 device to iOS6 and want to downgrade to 5.X for this you need SHSH of any iOS4 version and SHSH Blobs of iOS 5
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Kill ME,I'm Using iPhone Without Jailbreak
What I'm using it?
You can request me Factory unlock for 3,Denmark | 3 & Voda,Australia | Telenor,Norway | AT&T,America 4,4[s],5 | SFR,France 4,4[s]
Note: Factory unlock service is paid.
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09-20-2012, 02:48 PM
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#10
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Obsessive iPhone Disorder
Bruteoutlawz is offline
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Quote:
Originally Posted by Sitlay
Yes you are right
If you have SHSH blobs for 5.1.1 and your device is on 5.1.1 you can restore it to it
but once you updated your A5 device to iOS6 and want to downgrade to 5.X for this you need SHSH of any iOS4 version and SHSH Blobs of iOS 5 |
Really good news, i'll take 5.1.1 with a permanent jailbreak over ios 6 any day.
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09-20-2012, 04:24 PM
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#11
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Obsessive iPhone Disorder
WhyNotCallMeRo is offline
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Quote:
Originally Posted by Sitlay
Yes you are right
If you have SHSH blobs for 5.1.1 and your device is on 5.1.1 you can restore it to it
but once you updated your A5 device to iOS6 and want to downgrade to 5.X for this you need SHSH of any iOS4 version and SHSH Blobs of iOS 5 |
Any iOS4 version ???
Does this mean from a other phone?
Because I never had ios4 on my iPhone4S
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09-20-2012, 04:41 PM
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#12
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Obsessive iPhone Disorder
Bruteoutlawz is offline
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Quote:
Originally Posted by WhyNotCallMeRo
Any iOS4 version ???
Does this mean from a other phone?
Because I never had ios4 on my iPhone4S
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I think thats for ipad 2, not sure though?
"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 downgrade even if you only wish to downgrade to 5.x "
Looks like it, 4S can re-restore to 5.1.1 but go to ios 6 and your stuck there.
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09-20-2012, 04:44 PM
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#13
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Obsessive iPhone Disorder
WhyNotCallMeRo is offline
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Quote:
Originally Posted by Bruteoutlawz
I think thats for ipad 2, not sure though?
"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 downgrade even if you only wish to downgrade to 5.x "
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Than it wont mean any ios4 blob from another device but from your own...
If this means for the 4S as well, than 
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09-20-2012, 04:53 PM
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#14
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Obsessive iPhone Disorder
Bruteoutlawz is offline
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Quote:
Originally Posted by WhyNotCallMeRo
Than it wont mean any ios4 blob from another device but from your own...
If this means for the 4S as well, than |
The 4S has never been on 4x firmware. Stick with 5.1.1 if you want to keep your jailbreak. Its not like ios 6 has any major changes anyway
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09-20-2012, 04:54 PM
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#15
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Obsessive iPhone Disorder
WhyNotCallMeRo is offline
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Quote:
Originally Posted by Bruteoutlawz
The 4S has never been on 4x firmware. Stick with 5.1.1 if you want to keep your jailbreak. Its not like ios 6 has any major changes anyway
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My thoughts exactly
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09-21-2012, 02:02 AM
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#16
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Sitlay is offline
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Kill ME,I'm Using iPhone Without Jailbreak
What I'm using it?
You can request me Factory unlock for 3,Denmark | 3 & Voda,Australia | Telenor,Norway | AT&T,America 4,4[s],5 | SFR,France 4,4[s]
Note: Factory unlock service is paid.
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09-21-2012, 02:25 AM
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#17
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Obsessive iPhone Disorder
WhyNotCallMeRo is offline
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Yep!!!
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09-21-2012, 05:35 AM
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#18
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Jailbroken
Fishgutt is offline
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5.1.1 it stays put on my phone :-)
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09-21-2012, 07:35 AM
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#19
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Jailbroken
bigs is offline
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Thanks very much Sitlay
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09-21-2012, 09:52 AM
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#20
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Obsessive iPhone Disorder
Wirerat is offline
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Quote:
Originally Posted by Sitlay
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Yea. This is why I hope the jailbreakers DO NOT release a jailbreak and waste an exploit. We all know apple will be releases several updates to try and put a bandaid on this gushing wound.
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