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Thread: upgrading IOS iphone 3Gs then unlock

  1. #1
    Default upgrading IOS iphone 3Gs then unlock
    hello ive been reading a few threads abount unlocking but some are already dead link and below my baseband. i would like to upgrade my iphone to where unlocking is possible.

    iPhone 3Gs
    firmware: 4.3.5
    baseband: 5.16.02
    serial #: 8401202****
    imei: 01 215300 562596 0
    my aunt had it on AT&T

    thanks to those who would respond.

    PS: i did tethered jailbreak but i would like to have it untrethered.

  2. #2
    I would recommend to pay for an imei unlock. It's around $5 on eBay but you need to verify that the seller is legit. Otherwise, you can contact Cowboy. He is a moderator on here.

    Other method,
    1. Download latest redsn0w to downgrade baseband to 5.14.x (google for tutorial)
    Note: Using Redsn0w to downgrade newer make units will permanently brick your iPhone because Apple changed the baseband chip and it's not compatible with Redsn0w.

    2. Upgrade to 6.x.x firmware using iTunes

    3. Untethered jailbreak using p0sixspwn

    4. Unlock using Ultrasn0w

    Good luck

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