Unlocked 1.4 using Ziphone, can I upgrade to 2.0 firmware?

Discussion in 'Jailbreaks and iOS Hacks' started by theanimala, Mar 21, 2009.

  1. theanimala macrumors 6502

    Joined:
    Mar 2, 2007
    #1
    I unlocked my 2G iphone 1 year ago using Ziphone and it has been working perfect. I would like to upgrade to the latest firmware but I was not sure if it is possible since I heard Ziphone changes some necessary code. Can I do this? If so, would anyone mind posting some instructions? All posts seem to be geared towards new 3G iphone unlocking...

    Thanks!
     
  2. Tokiopop macrumors 68000

    Tokiopop

    Joined:
    Dec 6, 2008
    Location:
    West Yorkshire, UK
    #2
    DFU restore the phone back to Apple firmware. Make sure you set the phone up as a new one. But if you want you can choose to restore your settings at a later point.

    Once you've restored and updated to 2.2.1, you can use PwnageTool or QuickPwn to then Unlock and/or Jailbreak.

    This is probably the safest method.
     
  3. theanimala thread starter macrumors 6502

    Joined:
    Mar 2, 2007
    #3
    Thank you for the reply. Is this considered pretty safe? I am wondering if it is worth the risk to brinking this phone. If it's a no big deal then I will go for it.
     
  4. mkrishnan Moderator emeritus

    mkrishnan

    Joined:
    Jan 9, 2004
    Location:
    Grand Rapids, MI, USA
    #4
    It's pretty safe. Lots of us have done it (I used ZiPhone for 1.1.4 also).
     
  5. Tokiopop macrumors 68000

    Tokiopop

    Joined:
    Dec 6, 2008
    Location:
    West Yorkshire, UK
    #5
    I read somewhere the only real problem is when you go from 1.1.3 to something else without doing something or another. But you should be A-OK :D
     

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