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Thread: Downgrade iOS 4.0.2 to 4.0.1 / 4.0 Without SHSH Blobs

  1. #101
    Superbad Modder-ator Simon's Avatar
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    To the mods, my thinking is with the other guys. It might be best if this thread was deleted, just in case.

  2. #102
    Livin the iPhone Life
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    Just stop posting or replying to questions
    We're all just toymakers in the game of life.

  3. #103
    What's Jailbreak?
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    Quote Originally Posted by Dough Boy View Post
    Whoa! No way this is possible /sarcism
    Hey Who wants the ECID nmb of Iphone 3GS 32Gb MC model and Im Saying that i JUST restored !!!!!

  4. #104
    My iPhone is a Part of Me Trooper Sam's Avatar
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    PM me

  5. #105
    What's Jailbreak?
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    Here is the ecid of device !

    Quote Originally Posted by Trooper Sam View Post
    PM me
    what Mean PM me ?! Sory that i dont Know
    Last edited by piloti_v; 2010-09-04 at 11:13 PM. Reason: Automerged Doublepost

  6. #106
    Retired Moderator Orby's Avatar
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    PM means "Private Message."

    That ECID in the picture has 4.0 and later blobs available for it on Cydia. Select "Make my life easier, thanks!" anyway, just to be safe (can't hurt, right).

    If you'd like the copies of the SHSH blobs I saved locally for that ECID as part of the detection process, just let me know.

  7. #107
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    Quote Originally Posted by orbyorb View Post
    PM means "Private Message."

    That ECID in the picture has 4.0 and later blobs available for it on Cydia. Select "Make my life easier, thanks!" anyway, just to be safe (can't hurt, right).

    If you'd like the copies of the SHSH blobs I saved locally for that ECID as part of the detection process, just let me know.
    of course but tomorow i will upload !
    i did 3 screne shot ,step by step.
    i just want hwlp people not lie no one, i faund a interesant post and just shared for helping.
    (sory for my english)

  8. #108
    iPhone? More like MyPhone
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    I tried downgrading a new 4.0.2 16gb 3gs the other day and it did not have ANY shsh on file. I tried today and it has 4.0 and 4.0.1!!!

  9. #109
    My iPhone is a Part of Me Trooper Sam's Avatar
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    You figured it out just fine.

  10. #110
    What's Jailbreak?
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  11. #111
    Quote Originally Posted by nelesq View Post
    I was able to downgrade today!
    Here is what I did, and it worked for me:

    Download the 4.0.1 firmware called: iPhone2,1_4.0.1_8A306_Restore.ipsw

    When it finishes downloading, rename the file to this name:
    iPhone2,1_4.0.2_8A400_Restore.ipsw

    Then I added the "74.208.10.249 gs.apple.com" line to the host file on my computer. If you need help with this, read saurik's instructions:
    Caching Apple's Signature Server - Jay Freeman (saurik)

    Restart your PC!

    When everything is back up and running, open iTunes

    Put your iPhone on DFU Mode (search YouTube for how to put your iPhone in DFU Mode, its easy)

    Once your phone is on DFU mode, plug it in to the USB cable.

    iTunes will tell you that your iPhone is in recovery mode.
    Hit OK

    Press the Shift key, then click on the "Restore" button.
    Search for the file you renamed to iPhone2,1_4.0.2_8A400_Restore.ipsw
    (I found it here: iClarified - iPhone - Where To Download iPhone Firmware Files From)

    It should work!
    It worked for me.
    I just now jailbroke it by going got JailbreakMe from my iPhone

    This phone had never been jailbroken and had no SHSH saved anywhere.


    OMG!! Thank you, I like will you marry me love you right now been trying to unbrick my phone for the last couple hours after some c_nt at the apple store got hold of it. Trick iTunes with a file rename, effing genius and not like "bar" genius. Really who would look for a genius at a bar anyways (the kind of person that likes the apple store) don't you go to a bar to get stupid? Muchas Gracias!

  12. #112
    Superbad Modder-ator Simon's Avatar
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    It's not the renaming the file that fixed it for you. The part where you edited your hosts files is the important part. It would have worked just the same had you not renamed the file.

  13. #113
    My iPhone is a Part of Me Trooper Sam's Avatar
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    You know, one day they're gonna find out that it doesn't work.

  14. #114
    Retired Moderator soulthoughts's Avatar
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    Keep fighting the good fight Sam. All these first time posters saying it works are nuts.

  15. #115
    Retired Moderator Orby's Avatar
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    Quote Originally Posted by soulthoughts View Post
    Keep fighting the good fight Sam. All these first time posters saying it works are nuts.
    They're not nuts, nor are we jerks for calling them nuts.

    Cydia makes it rain SHSH blobs, we (the experienced 'veterans') are all stunned, claim their (the self-declared acolytes) feat is impossible without the blobs.

    They claim no backed-up blobs, and rightfully so (they never backed them up, factory-sealed 4.0.2 3GS). They may or may not know of the SHSH signing system, if they do, they believe (again, until recently, rightly so) that Cydia can't replay what it didn't cache from Apple signing in time. Hence they say miracle, no blobs! and we say "wtfnowai."

    Between this and Musclenerd's cryptic tweet about comex and his "trifecta," I think we're gonna hit the proverbial jackpot, possibly as early as Wednesday, or maybe the next hardware cycle.

    Mark my words: it'll be good times for jailbreaking hackers... soon. I believe it. I also believe we're in for layers and layers of warm gooey jailbreak (and possibly unlock, less knowledge there) goodness.
    Last edited by Orby; 2010-09-06 at 09:37 AM.

  16. #116
    My iPhone is a Part of Me Trooper Sam's Avatar
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    Quote Originally Posted by x98car View Post
    It's not the renaming the file that fixed it for you. The part where you edited your hosts files is the important part. It would have worked just the same had you not renamed the file.
    And actually, it was the renaming nonsense that was referred to, such as quoted. THAT'S what they'll figure out doesn't work.

    Orby's right though...the deluge of blobs has been...disconcerting. Good, but disconcerting. I look forward to the day that we get an explanation for it.

  17. #117
    Retired Moderator soulthoughts's Avatar
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    What I'm saying is all the people who have said this works and have provided screenshots have all had blobs saved.


    Sent from my iPhone using ModMyi

  18. #118
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    Quote Originally Posted by soulthoughts View Post
    What I'm saying is all the people who have said this works and have provided screenshots have all had blobs saved.


    Sent from my iPhone using ModMyi
    Yep, that's a hundred percent.

  19. #119
    I have an Iphone 3G that has 4.02 that I would like to downgrade to 4.0.1 so I can switch to T-Mobile. I'm a newb but from what I am reading it doesn't seem possible. Can anyone clarify please?

  20. #120
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    Quote Originally Posted by xokia View Post
    I have an Iphone 3G that has 4.02 that I would like to downgrade to 4.0.1 so I can switch to T-Mobile. I'm a newb but from what I am reading it doesn't seem possible. Can anyone clarify please?
    You don't need to downgrade a 3G phone. You can jailbreak right now with redsn0w. After the jailbreak, you can unlock with ultrasn0w.

    You can find redsn0w here: redsn0w 0.9.5 BETA [iPhone Dev Team]

    Ultrasn0w will be available in Cydia after the jailbreak.
    We're all just toymakers in the game of life.

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