Upgrade JB?

Discussion in 'OT Technology' started by trashmouth12, Apr 13, 2010.

  1. trashmouth12

    trashmouth12 Bad Mother Fucker

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    I have a jailbroken 3GS on 3.0 and I would like to upgrade to 3.1.2 and rejailbreak. How do I get apple to verify the FW. When I try to upgrade it doesn't let me.
     
  2. BRAD_M

    BRAD_M New Member

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    spirit jb. google it
     
  3. Pepe

    Pepe New Member

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    you won't be able to update/restore to 3.1.2 unless you have your ECID SHSH files saved for that specific firmware either with cydia or to your own computer.

    assuming you don't need to unlock, the best way to do this would be to simply upgrade to 3.1.3 and then jailbreak using spirit

    if you are using windows:
    http://www.iclarified.com/entry/index.php?enid=9202

    if you are using mac:
    http://www.iclarified.com/entry/index.php?enid=9201


    if you need to unlock, you will have to build a custom 3.1.3 firmware using pwnagetool (mac) in order to preserve your baseband. once this is done you can upgrade to that custom firmware and you will be jailbroken. after that just install ultrasn0w and you will be unlocked.

    pwnagetool link
    http://www.iclarified.com/entry/index.php?enid=5432
     

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