Unlock iphone 3GS - AT&T

Discussion in 'iPhone Unlocking' started by brvaland, Apr 10, 2012.

  1. brvaland
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    brvaland New Member

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    Hi Experts

    I have iPhone 3GS with iPad baseband 06.15.00. The phone was upgraded to the above baseband to unlock it using ultrasn0w on iOS 4.x. The phone is unlocked but I would like to upgrade to iOS 5.1

    Recently found that AT&T will unlock old iPhone if you finished your contract.

    If I am to upgrade to iOS 5.1 will it upgrade the baseband and will it work.

    Please advise?
  2. Jmills87
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    Jmills87 New Member Staff Member

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    Unfortunately Mary123 is right, once you've upgraded to the iPad baseband you are stuck there. You will have to continue using the software unlock.
  3. brvaland
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    brvaland New Member

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    Hi JMills87,

    Just wanted to check if there are any tools available now that will allow me to upgrade to iOS 6.x and let me upgrade to latest iPhone baseband.

    I really want to upgrade to iOS 6.x and as I can get my iPhone unlocked from AT&T.

    Any help will be appreciated.

    Thanks
  4. Jmills87
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    Jmills87 New Member Staff Member

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    You can upgrade to iOS6 and use Redsn0w to install the iPad baseband/downgrade to the 05.13.04 baseband
  5. brvaland
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    brvaland New Member

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  6. Jmills87
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    Jmills87 New Member Staff Member

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    If you already have the 06.15.00 baseband installed, then yes.
  7. akwan
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    akwan New Member

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    If you contact AT&T they will unlock it if your phone is 2 years old.
  8. Thomasjtsi
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    Thomasjtsi Super Moderator Staff Member

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    That isn't necessarily true. Just because you own a 2 year old iPhone doesn't mean they'll unlock it. There are stipulations that you must meet before AT&T will unlock.
  9. Jmills87
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    Jmills87 New Member Staff Member

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    Yes, the first and most important being that you must be the original owner.
  10. akwan
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    akwan New Member

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    Did you get it figured out?

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