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Thread: Unlock 3GS OS: 4.3.5 on Firmware: 05.16.02 - no SHSH files Help?

  1. #1
    Default Unlock 3GS OS: 4.3.5 on Firmware: 05.16.02 - no SHSH files Help?
    Hello everyone,

    Trying to unlock this 3GS phone.

    Modem Firmware: 05.16.02
    OS: 4.3.5 8L1
    Model: MB716LL
    Serial number: 88932LE43NQ (2009, week 32)

    I understand I need to update to 6.15.00 and will lose GPS, that's fine with me.

    I don't have any SHSH blobs.

    Do I have the steps right so far?

    Downgrade to 4.1
    I have this file: iPhone2,1_4.1_8B117_Restore.ipsw
    (how do I actually do this? Seems like I need an older version of iTunes and maybe some SHSH files?)

    Use Redsn0w to Jailbreak.
    Use Redsn0w to install iPad Baseband 06.15.00.

    Run Ultrasn0w in Cydia to unlock.


    Is there a better way to this?

    Thanks for any advice!

  2. #2

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