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Thread: Downgrade from iOS 4 to 3.1.3 w/out SHSHs?

  1. #1
    What's Jailbreak? Xeno Templar's Avatar
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    Default Downgrade from iOS 4 to 3.1.3 w/out SHSHs?
    is there any way to downgrade from 4.0 to 3.1.2/3.1.3, jailbroken w/ jailbreakme.com?
    2ndgen, MC model if it matters
    almost forgot: i only have SHSHs from 4.0 jailbreak not any from 3.1.3, if i cant do above could i use my friend's, he has a 1st gen he just jailbroke w/ the same process?
    Last edited by Xeno Templar; 2010-08-08 at 02:37 AM.
    Xeno Templar
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    iPhone? More like MyPhone Patato22's Avatar
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    mmm i think you can't do that without the shshs save
    iPhone 4 Black 16GB JailBroken waiting for unlock

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    Xeno Templar (2010-08-10)

  4. #3
    Quote Originally Posted by Xeno Templar View Post
    is there any way to downgrade from 4.0 to 3.1.2/3.1.3, jailbroken w/ jailbreakme.com?
    2ndgen, MC model if it matters
    almost forgot: i only have SHSHs from 4.0 jailbreak not any from 3.1.3, if i cant do above could i use my friend's, he has a 1st gen he just jailbroke w/ the same process?
    the only option then for you is redsn0w or pwnage tool

    but beware these tools/jailbreaks are tethered jailbreaks

    p.s using these tools is pretty much your only option
    i have 20 lockerz invites pm me your email if you want one

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    Xeno Templar (2010-08-10)

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    What's Jailbreak? Xeno Templar's Avatar
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    Ya, I kinda figured as much, f*** it, I'll wait until the devs fix the packages so they're compatible w/ 4.0
    All I want is 6 IconDock, InfiniBoard & AndroidLock!
    Ya, I know about the AndroidLock XT but it never seems to work for some reason!
    Xeno Templar
    32GB iPT 3rd gen.; JB w/ GP RC 6.1!
    Original XBox; Still working on FW flashing!
    XBox 360 Elite; FW flashed w/ iXtreme!

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    Do either redsn0w or pwnage tool work with a 2ndgen MC model. I did not know that. You could try downloading 3.1.3 and use a old itunes to shift click restore. I did it no probs when ios4 was released but when I try aboout a week ago I could not. May be worth a try. Good luck.

  8. #6
    Quote Originally Posted by kapslock View Post
    Do either redsn0w or pwnage tool work with a 2ndgen MC model. I did not know that. You could try downloading 3.1.3 and use a old itunes to shift click restore. I did it no probs when ios4 was released but when I try aboout a week ago I could not. May be worth a try. Good luck.

    you can not downgrade without shsh blobs straight from itues
    you must of did it in the small window when ios4 was released

    yes you can use redsn0w or pwnage tool but they will be a tethered jailbreak
    i have 20 lockerz invites pm me your email if you want one

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    Xeno Templar (2010-08-11)

  10. #7
    What's Jailbreak? Xeno Templar's Avatar
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    Quote Originally Posted by ipod_guy View Post
    you can not downgrade without shsh blobs straight from itues
    you must of did it in the small window when ios4 was released

    yes you can use redsn0w or pwnage tool but they will be a tethered jailbreak
    ok, im willing to go the tethered route, can u provide a link to to the pwngtool and instructions on how to downgrade from 4.0 to 3.1.2/3 w/ it and the 4.0 SHSHs, if ill even need those?
    suppose i actually do this and am successfully put on 3.1.2/3 tethered JB, could i restore to non-JB 3.1.2/3 and then just goto jailbreakme.com and make it a non-tethered JB, after-wards?
    Xeno Templar
    32GB iPT 3rd gen.; JB w/ GP RC 6.1!
    Original XBox; Still working on FW flashing!
    XBox 360 Elite; FW flashed w/ iXtreme!

  11. #8
    Not possible. Those dev tools are tethered i.e. those tools temporarily flash the firmware, not the boot rom. Comex, the creator or jailbreakme, warned against this on twitter as this has a good chance of permanently bricking the device. The device will also still have a 4.0 shsh afterwards as this is a hardware generated checksum. I checked my buddies 3.1.2 device and it had 4.0 shsh's. These are automatically updated by syncing with iTunes. That said, jailbreakme is compatible with all os3/ios4 releases except 4.0.2 which was released today, which patches that hole, so I would save your 4.0 shsh with firmware umbrella so u will not be locked out of all jailbreaks. The tethered would be your only option at that point. I also think they have stopped signing 4.0 today
    Last edited by rackstar; 2010-08-13 at 07:50 AM.

  12. #9
    What's Jailbreak? Xeno Templar's Avatar
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    Well, thank you all who answered me, I guess I'll just wait until the devs update those 3 packages so they'll be compatible w/ 4.0
    Xeno Templar
    32GB iPT 3rd gen.; JB w/ GP RC 6.1!
    Original XBox; Still working on FW flashing!
    XBox 360 Elite; FW flashed w/ iXtreme!

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