Can anyone confirm this works successfully?

Discussion in 'iPhone' started by ripply, Mar 4, 2010.

  1. ripply

    ripply Active Member

    Joined:
    Jul 31, 2009
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    Device:
    iPhone 4 (Black)
    Can anyone confirm if downgrading the new baseband to an older one works because I have the old bootroom and dont want to restore through itunes if it messes my phone up. The reason I dont want to restore is because I need an AT&T Sim to activate my phone and I dont have one.

    http://www.youtube.com/watch?v=VQXhI32GtGo

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