Possible to preserve 4.2.1 baseband and upgrade using tinyumbrella?

Discussion in 'Jailbreaks and iOS Hacks' started by clactonlad, Mar 10, 2011.

  1. clactonlad macrumors member

    Joined:
    Aug 18, 2010
    #1
    Hi guys,

    Probably a stupid question so sorry for asking...but is it possible to preserve my current ip4 4.2.1 baseband and upgrade to 4.3 using tinyumbrella?
    I don't care about the jailbreak atm, however i would like to preserve my bb for any future unlocks that might become available.

    Thanks!
     
  2. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #2
    The 4.2.1 baseband cannot be unlocked either.
    So when the next unlock comes it will work on the latest baseband.
    No need to preserve a baseband that's not unlockable.
    Now if you had 01.59.00 on your iphone 4 then I could see it.
     
  3. iPhone Addict macrumors 6502

    Joined:
    Jun 18, 2009
    Location:
    San Francisco, CA
    #3
    What if the 4.2.1 BB is later found to have a vulnerability while the 4.3 BB still proves to be foolproof against unlocks? Wouldn't it be in his best interest to keep his older 4.2.1 BB just in case?
     
  4. ali9686 macrumors member

    ali9686

    Joined:
    Jun 21, 2010
    #4
    I was thinking that too..
     
  5. clactonlad thread starter macrumors member

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    Aug 18, 2010
    #5
    Hence why i asked the question about preserving the BB, but i guess that got overlooked in the above answer :) ;)
     
  6. random818 macrumors newbie

    Joined:
    Jan 8, 2008
    #6
    Please clarify. My ip4 is on 01.59.00. Can I then use tinyumbrella to update and preserve the old baseband ?
     
  7. iPhone Addict macrumors 6502

    Joined:
    Jun 18, 2009
    Location:
    San Francisco, CA
    #7
    Yeah. You can use tinyumbrella and keep your baseband at 1.59.00 and upgrade to 4.2.1 and jailbreak it. You could also go to 4.3 but that is only a tethered jailbreak currently. Google what a tethered jailbreak is if you're not sure what that means. Good luck!
     
  8. random818, Mar 10, 2011
    Last edited: Mar 10, 2011

    random818 macrumors newbie

    Joined:
    Jan 8, 2008
    #8
    I was more concerned with going to stock-like 4.3 and preserving an old baseband. The untethered jailbreak will come sooner or later. But an unlock might never come.

    After seeing the tutorial below on iClarified, I'm just going to go back to waiting. It's scary to accidentally update my baseband.

     
  9. Bill Gates macrumors 68020

    Bill Gates

    Joined:
    Jun 21, 2006
    Location:
    127.0.0.1
    #9
    I chose the option to "upgrade" from within iTunes after opening TinyUmbrella in the background but NOT having the TSS server running. My baseband was not upgraded and remains at 02.10.4. I don't know if it's necessary to have TU running or to just have Saurik's server in your /etc/hosts file.
     
  10. clactonlad thread starter macrumors member

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    Aug 18, 2010
    #10
    Was this while upgrading to 4.3?
     
  11. dieburnbot macrumors 6502a

    dieburnbot

    Joined:
    Aug 18, 2008
    Location:
    CA
    #11
    Yes it's possible. I have been preserving my baseband at 1.59 On my iPhone 4 the entire time with tiny umbrella. Just load up tiny umbrella back up your shsh and then start tss server. Do a shift+restore in iTunes.
     
  12. Bill Gates macrumors 68020

    Bill Gates

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    Jun 21, 2006
    Location:
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    #12
    Yes.
     
  13. clactonlad thread starter macrumors member

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    Aug 18, 2010
    #13
    Awesome! Though i am nervous to try this! lol
     
  14. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #14
    Doubt it.
    But you never know.
    Just to be sure I'd hold off upgrading yet and double check if TU supports 4.3 BB preservation on the i4.
    Or follow what B.G said above since it worked out for him.
     
  15. dieburnbot macrumors 6502a

    dieburnbot

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    Location:
    CA
    #15
  16. clactonlad thread starter macrumors member

    Joined:
    Aug 18, 2010
    #16
    Thanks for this! I think I am going to try and be a bit patient over the weekend though and see how the i0n1c jailbreak thing pans out.....
     

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