how do u upgrade 4.2.1 to iOS 5 while keeping the software unlock?

Discussion in 'Jailbreaks and iOS Hacks' started by Dextor143, Oct 25, 2011.

  1. Dextor143 macrumors 6502

    Joined:
    Oct 28, 2008
    Location:
    USA
    #1
    I have Iphone 4 with 1.59.00 baseband and currently I am running 4.2.1. I software unlocked it and ever since than kept my bb secured.

    I have been searching online but no one has shown me that they have upgraded the software without upgrading the BB and keeping the unlocked feature(software unlock)

    Any help will be greatly appreciated.

    Thanks

    SR
     
  2. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #2
    iOS 5.0 only has a tethered JB available.
    So unless you want to deal with that I'd stay at 4.2.1 for now till an untethered solution is released.
     
  3. Dextor143 thread starter macrumors 6502

    Joined:
    Oct 28, 2008
    Location:
    USA
    #3
    ^ is that means, once the unthethared solution is released, I can just upgrade while keeping my BB down to 1.59.00. will that keep my software unlock feature still active?

    thanks again.
     
  4. heisenberg123 macrumors 603

    heisenberg123

    Joined:
    Oct 31, 2010
    Location:
    Hamilton, Ontario
    #4

    no you will always have to your the update firmware while preserving your baseband method

    what applejuice is saying is the jailbreak for iOS 5 is tether right now and thats not as appealing to some as an untethered jailbreak

    but you must always follow the steps to preserve you baseband regardless if you update now and use the tethered jailbreak or wait to do it when a untethered has been released
     
  5. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #5
    Yes, you will have to update using a custom JB ipsw that maintains your unlockable baseband.
    If you ever update to stock firmware your unlock will be lost forever.
     

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