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Restoring to the same iOS with blobs

This is a discussion on Restoring to the same iOS with blobs within the iPhone Jailbreaking forums, part of the iPhone Hacking & Jailbreaking category; I've always wondered but never really tried since it always slips my mind. Would it be possible to restore an idevice to the same iOS ...

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  1. 10-01-2012 10:35 PM #1
    willerz2  [OP]
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    Restoring to the same iOS with blobs

    I've always wondered but never really tried since it always slips my mind. Would it be possible to restore an idevice to the same iOS with the blobs for that iOS after the signing period has ended? I.E. if you're running 5.1.1 now, and only 6.0 is being signed, would you be able to restore it back to 5.1.1 as in a clean install using blobs? I know that you'd need Pwned DFU for downgrading but would regular DFU work for basically "re-installing" an iOS? On non-A5 devices, you would be able to upgrade them to 6.0 then downgrade again with RedSn0w or sn0wbreeze with the low level boot exploit, but would it work on A5s?
    iPhone 4S White 16 GB iOS 6.1.2 Evasi0n 1.5|| iPad 2 Black 16GB (WiFi) 6.1.2 Evasi0n 1.4 || iPhone 5 (Slate)/iPhone4S (Black) 64GB Dev Cracked

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  2. 10-01-2012 10:35 PM
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  3. 10-02-2012 02:18 AM #2
    Thomasjtsi 
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    If you have SHSH's saved for the specific iOS version you're wanting to downgrade to... yes. You can update then downgrade back to that specific iOS version freely. However, this only applies to A4 devices and earlier. The 4S and 5 do not have the needed bootrom exploit (limera1n) to downgrade.
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  4. 10-02-2012 02:20 AM #3
    willerz2  [OP]
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    Right now I'm trying to get a fresh installation of 5.1.1 on my work 4S, and since the 4S does not have an exploit, I was wondering if I can just do a fresh install. Basically skipping the upgrading part and just starting with the stitching
    iPhone 4S White 16 GB iOS 6.1.2 Evasi0n 1.5|| iPad 2 Black 16GB (WiFi) 6.1.2 Evasi0n 1.4 || iPhone 5 (Slate)/iPhone4S (Black) 64GB Dev Cracked

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  5. 10-02-2012 02:21 AM #4
    Thomasjtsi 
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    Quote Originally Posted by willerz2 View Post
    Right now I'm trying to get a fresh installation of 5.1.1 on my work 4S, and since the 4S does not have an exploit, I was wondering if I can just do a fresh install. Basically skipping the upgrading part and just starting with the stitching
    Nope... the stitching process creates a "Custom IPSW" on your iDevice. The limera1n exploit is what's needed to install the Custom IPSW file. That's what the whole downgrading hangup is... installing the Custom Firmware. Without that bootrom exploit... it's just not possible.
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  6. 10-02-2012 07:11 AM #5
    wingzfan61
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    I thought saving the blobs with tiny umbrella and using redsnow to "re-restore" would allow you to reload 5.1.1 on a 4s as long as you were still on 5.1.1.
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  7. 10-02-2012 07:40 AM #6
    Thomasjtsi 
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    Quote Originally Posted by wingzfan61
    I thought saving the blobs with tiny umbrella and using redsnow to "re-restore" would allow you to reload 5.1.1 on a 4s as long as you were still on 5.1.1.
    Nope... redsn0w will create the custom IPSW using the saved SHSH's. That custom firmware is only loadable on.... pre-A5 iDevices.
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  8. 10-02-2012 07:45 AM #7
    wingzfan61
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    Quote Originally Posted by Thomasjtsi

    Nope... redsn0w will create the custom IPSW using the saved SHSH's. That custom firmware is only loadable on.... pre-A5 iDevices.
    Actually the redsnow does restore 5.1.1 on a5 devices as long as cydia has saved 5.1.1 blobs or you save them on tiny umbrella. The newest redsnow has a Re-restore feature to reload the current 5.1.1 as long as you havent upgraded to 6.

    It was released about 2 weeks ago.
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  9. 10-02-2012 07:46 AM #8
    Thomasjtsi 
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    Quote Originally Posted by wingzfan61

    Actually the redsnow does restore 5.1.1 on a5 devices as long as cydia has saved 5.1.1 blobs or you save them on tiny umbrella. The newest redsnow has a Re-restore feature to reload the current 5.1.1 as long as you havent upgraded to 6.

    It was released about 2 weeks ago.
    Ahhhh ok.... thought we were still talking about downgrading here! You got me on that one.......
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  10. 10-02-2012 07:47 AM #9
    Thomasjtsi 
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    But it only works for 5.1.1 on the 4S right?
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  11. 10-02-2012 07:48 AM #10
    wingzfan61
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    Quote Originally Posted by Thomasjtsi
    But it only works for 5.1.1 on the 4S right?
    Yeah only on 5.1.1 for any device. heres the instructions for the OP.

    http://www.idownloadblog.com/2012/09/19/re-restore/
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