JB from 4.0.1 -> 4.1 keeping 1.59BB?

Discussion in 'Jailbreaks and iOS Hacks' started by h1r0ll3r, Jan 12, 2011.

  1. h1r0ll3r macrumors 68040

    h1r0ll3r

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    Maryland
    #1
    So a friend has asked me to JB his phone for him. He's never updated his phone since getting it so he still has a stock 4.0.1 on it with 1.59BB. He wants to go to 4.1 only (he really wants GameCenter for some reason:rolleyes:) while maintaining his BB for unlocking purposes.

    Now, I just needed to see if I had the process for this correct prior to doing anything. If something is incorrect, let me know.

    Initially, I'll use TU to grab his SHSH's.While leaving TU on in the background, I'll put the phone into DFU mode and then Option+Restore (I have a Mac) and select the 4.1 IPSW I have as the new OS. I've never done this before as I've only downgraded in the past so this process is a bit new to me.

    I'm under the assumption that leaving TU running will keep the BB intact while still updating to 4.1 and then hit the Kick Me Out of Recovery to finish the process.

    My other option was simply to use jailbreakme.com, let Cydia make my life easier and install ultrasn0w. Then do the updating process using TU running in the background but this process seems longer I think.

    Is anything missing or is my process above flawed in any way?

    Thanks.
     
  2. Applejuiced macrumors Westmere

    Applejuiced

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    #2
    You are correct, assuming you're talking about an i4.
     
  3. h1r0ll3r thread starter macrumors 68040

    h1r0ll3r

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  4. Mhaddy macrumors 6502

    Mhaddy

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    #4
    @OP: In a similar situation as you and will be following this tutorial to walk me through the process. GL!
     
  5. h1r0ll3r thread starter macrumors 68040

    h1r0ll3r

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  6. dylanursula macrumors 6502

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    #6
    Hey all, is there an Iclarified guide for Windows as per above for the Mac?
    My wife is JB on her iphone4, and I would like to upgrade her to 4.1 too.

    Thanks
     
  7. Applejuiced macrumors Westmere

    Applejuiced

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    #7
    Yes, assuming you have shsh's saved for her phone for firmware 4.1 right?
     
  8. Mhaddy macrumors 6502

    Mhaddy

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    #8
    Just a follow-up: I am now running 4.1 with bb 1.59 and JB'd through Limera1n. Had a bit of a scare through the process but I'm happy to report that all is well :). Couple of things I'd like to point out from that guide:

    1. You have to click ALT/OPTION + RESTORE (not SHIFT) to select the 4.1 firmware that you downloaded separately
    2. As soon as you receive error 1004, click on "Exit Recovery" in TinyUmbrella - do not click "OK" or anything in that iTunes dialog box. Doing so will prevent the phone from exiting Recovery Mode.
    3. After completion of the guide linked above, you then have to JB using your software of choice (I followed the guide on iClarified for Limera1n on the Mac, worked like a charm)
     
  9. hackthatphone, Jan 13, 2011
    Last edited: Jan 13, 2011

    hackthatphone macrumors 68000

    hackthatphone

    Joined:
    Jul 28, 2010
    #9
    Keeping in mind that he may not have an shsh for 4.1 which could render this thread a moot point.


    You aren't just keeping the program open, you are also starting the TSS server which is a button you must click. This is crucial to preserving the baseband, along with having TU edit your hosts file for you automatically so it's not pointing at Apple.

    Actually you'd update with Tiny Umbrella's TSS server running first to get to 4.1, then you'd use jailbreakme.com after you were already activated, then install ultrasn0w.


    For everyone else out there the OP stated he had 1.59.00 BB. This will only be found on the iphone 4 and not any other generation of the iphone.
     
  10. h1r0ll3r thread starter macrumors 68040

    h1r0ll3r

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    #10
    If his phone is still on 4.0.1 and never JB'd, once I try and grab his SHSH's then wouldn't it grab the SHSH's for 4.0.1, 4.0.2, 4.1, 4.2.1 & 4.2b3? Or is this an incorrect assumption?
     
  11. Myzhi macrumors 6502a

    Myzhi

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    Dec 15, 2009
    #11
    Doesn't matter what firmware the phone is running. What SHSH files you can save only has to do with what Apple is signing / sending out. Right now, it's only 4.2.1.
     
  12. h1r0ll3r thread starter macrumors 68040

    h1r0ll3r

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    #12
    I see. Oh well, we'll see if this works or not :)
     

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