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Discuss iPhone 3G 16GB white 2.2.1FW Baseband unknown. Unlock? at the Yellowsn0w (3G unlock) - Hackint0sh.org; Hello, i bought me a new iPhone. Now I am waiting for the parcel I ...
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    Default iPhone 3G 16GB white 2.2.1FW Baseband unknown. Unlock?

    Hello,
    i bought me a new iPhone.
    Now I am waiting for the parcel
    I want to use this phone with my non-tmobile provider sim.
    I dont know the baseband Version.
    Are I am right?
    Jailbreak = run unsignet software BUT still locked to t-mobile?
    Yellowsn0w= Software unlock for all provider? But not with the new Baseband?
    Is it possible to downgrade the Baseband?
    Or is the only possibility a turbo sim card adapter?



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    Default

    Jailbreak = run unsignet software BUT still locked to t-mobile?
    Yes

    Yellowsn0w= Software unlock for all provider? But not with the new Baseband?
    Yes

    Is it possible to downgrade the Baseband?
    Yes, if you have Bootloader 5.8 which is VERY rare. So I would say NO

    Or is the only possibility a turbo sim card adapter?
    Not reliable. Don't work with 3G.

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    Well I'm currently on a turbo sim adapter because I accidentally "upgraded" to 2.2.1 the day I got my iPhone. Anyways, it works decently. It's the only temporary option, other than using another phone while carrying around your iPhone as an iPod Touch.

    The one thing about some of the adapters is that once your iPhone completely goes to "No Service," you have to remove the actual SIM card and place it in another T-Mobile phone to regain signal, then you can put it back in your iPhone and it'll work fine.

    Something usefull to have if you're going with the adapter is install SBSettings and "Show" Airline mode, so if you're going to be somewhere that you KNOW you won't get service, you won't have to do the SIM re-activating. Schools, hospitals, tunnels...a lot of the obvious areas.

 

 

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