1. Simon's Avatar
    Looks like you are right. I knew about the soft SHSH for iPhone 3G but never tested it before. Easy enough to get around though. DFU restore to 3.1.2, jailbreak with redsn0w or blackra1n then restore to a custom 4.0 made with pwnage tool or sn0wbreeze. No SHSH required. Also there is a good chance cydia has SHSH for a iPhone 3G so using tiny umbrella or pointing hosts to cydia should work too.
    2010-09-10 03:01 AM
  2. iYeow's Avatar
    If you want to downgrade to 3.XX, you only need TU for only one function, that is " kick out of recovery "
    Let's say you want to downgrade to 3.1.2 on a 3G,
    Download the 3.1.2 ipsw onto your desktop.
    Put your iphone into DFU mode.
    Do the Shift + Restore to 3.1.2 ipsw.
    Make sure your hosts file is not edited and must point to Apple.
    It will error at 1015,
    Now you use the kick out of recovery from tiny Umbrella.
    Once booted up, you will be at emergency Screen.
    Then you can jailbreak with your preferred tools.

    i've done a little reading, but i'm still not sure if i understand this tiny umbrella thing. i did the shift+restore, and it went well, till the end. i got an error of 3194 or something like that. but i was trying to restore to 4.0... that may have been a mistake. the phone is fine though, but still on 4.1. so do i need to download 3.1.x, and try again? is there a walk through on how exactly to use tiny umbrella? i'm sorry for the questions. i don't want to come off like a total idiot here, but i've just never had to deal with downgrading before.
    If you still want to restore to 4.0 but you are at 4.0.2 and jailbroken by Redsn0w and not by Spirit or Jailbreakme.com, then you can restore to a custom firmware of iOS 4.0 ( No shsh blogs is needed )
    Last edited by iYeow; 2010-09-10 at 03:09 AM. Reason: Automerged Doublepost
    2010-09-10 03:09 AM
  3. Simon's Avatar
    If you still want to restore to 4.0 but you are at 4.0.2 and jailbroken by Redsn0w and not by Spirit or Jailbreakme.com, then you can restore to a custom firmware of iOS 4.0 ( No shsh blogs is needed )
    I just said that didn't I
    2010-09-10 03:11 AM
  4. iYeow's Avatar
    I just said that didn't I
    Yes,you did. Thank You.
    2010-09-10 03:13 AM
  5. turboranger91's Avatar
    Sounds easy enough. I'll give that a shot and let you know what happens. Thanks for the tips, guys!

    alright, one last question before i try this... which version of tinyumbrella do i need to download? there's so many.
    Last edited by turboranger91; 2010-09-10 at 03:58 AM. Reason: Automerged Doublepost
    2010-09-10 03:58 AM
  6. Simon's Avatar
    2010-09-10 03:58 AM
  7. turboranger91's Avatar
    right on. just downloaded it, and i'm waiting on fw 3.1.3 to download now.
    2010-09-10 04:05 AM
  8. robbiem90's Avatar
    i tried to downgrade my iphone 3g to ios 4.0 from 4.1 and it wouldn't let me..a put the phone in dfu mode and i followed all the steps..but when i select de firmware..itunes says that it will verify with apple and then it would give me an error..
    2010-09-10 04:04 PM
  9. turboranger91's Avatar
    everything went well. i'm back on 3.1.3 for the time being. man, it was only a day, but i missed my jb so much! lol. thanks for all the tips, guys!
    2010-09-10 06:23 PM
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