Can I install iOS4 on already jailbroken & unlocked 3GS?

Discussion in 'Jailbreaks and iOS Hacks' started by warpath, Jun 25, 2010.

  1. warpath macrumors newbie

    Joined:
    Jun 25, 2010
    Location:
    Berlin
    #1
    I have:

    • iPhone 3GS
      Modem Firmware: 04.26.08
      iTunes 9.2
      Version 3.0 (7A341)
      Already jailbroken
      Already unlocked

    Can I simply install iOS 4 or do I have to re-jailbreak and re-unlock?
     
  2. Imsuperjp macrumors 6502

    Joined:
    Apr 9, 2010
  3. scirica macrumors 68020

    scirica

    Joined:
    May 13, 2008
    Location:
    Dallas, TX
    #3
    I have the same setup. Right now I'm buiilding my new ipsw with pwnage tool. First time pwnage failed to build the ipsw. Trying again.
     
  4. rgarjr macrumors 603

    rgarjr

    Joined:
    Apr 2, 2009
    Location:
    Southern Calif
    #4
    u need to use Pwnagetool to upgrade it to a custom 4.0 version.
     
  5. thelatinist macrumors 603

    thelatinist

    Joined:
    Aug 15, 2009
    Location:
    Connecticut, USA
    #5
    You can upgrade with a custom firmware made with PwnageTool. You must be sure not to upgrade to the official 4.0 firmware, only to a pre-jailbroken custom one.
     
  6. mso4 macrumors regular

    Joined:
    Jul 2, 2009
    #6
    let me know if it works, i like to try the new 4.0 too
     
  7. warpath thread starter macrumors newbie

    Joined:
    Jun 25, 2010
    Location:
    Berlin
    #7
    Ok. Unlocking and Jailbreaking the first time (nearly a year ago) seemed much easier. To be frank, I don't even know what you mean by "ipsw" but I'll take your word for it. I'm not very bright so anyone who could handhold me with some step-by-steps for my current configuration would be much appreciated. :)
     
  8. warpath thread starter macrumors newbie

    Joined:
    Jun 25, 2010
    Location:
    Berlin
  9. Imsuperjp macrumors 6502

    Joined:
    Apr 9, 2010
    #9
    depends if you used spirit or not to jailbreak originally
     
  10. warpath thread starter macrumors newbie

    Joined:
    Jun 25, 2010
    Location:
    Berlin
    #10
    I didn't. I think I used Ultrasnow
     
  11. Imsuperjp macrumors 6502

    Joined:
    Apr 9, 2010
    #11
    Ultrasn0w doesn't jailbreak your phone. It unlocks a jail broken phone
     
  12. warpath thread starter macrumors newbie

    Joined:
    Jun 25, 2010
    Location:
    Berlin
    #12
    Ok then I think I used Redsn0w or the jailbreak tool at the time from the iphone dev team. I'm 90% sure I didn't use Spirit. Again i hacked it nearly a year ago.
     

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