Understanding function of baseband

Discussion in 'Jailbreaks and iOS Hacks' started by chenchend, Feb 17, 2011.

  1. chenchend macrumors newbie

    Feb 15, 2011
    I recently got myself an iPhone 4 with iOS 4.2.1, modem firmware/baseband 3.10.01. but i do not have any commitment with any sort of telco carrier. do i still need to unlock the baseband? or can i just jailbreak it with to-date greenpoison? still new with the iphone thing. thnx~
  2. Myzhi macrumors 6502a


    Dec 15, 2009
    Is the phone lock to a carrier? If yes and you want to use it on another carrier, the phone needs to be unlock. And, 3.10 baseband can only be factory unlock. Ultrasnow software unlock does not work on it.

    And, Greenpoison is to JB the phone. Unlock and JB are two different things.
  3. SDub90 macrumors 6502a

    Nov 9, 2009
    Long Island
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)

    If it's not an AT&T iPhone, I think you can bring it to a carrier that supports the iPhone to have it unlocked (some may charge you a fee) or it may already be unlocked.
  4. chenchend thread starter macrumors newbie

    Feb 15, 2011
    my phone is not lock to any carrier. means that i can just JB it? thanx~
  5. MikePA macrumors 68020


    Aug 17, 2008
    If you have an unlocked phone, you do not have to be concerned about upgrading the the baseband when you upgrade the firmware (iOS).
  6. hackthatphone macrumors 68000


    Jul 28, 2010

    Yes you can just jailbreak the phone.
  7. chenchend thread starter macrumors newbie

    Feb 15, 2011

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