Upgrade O/S firmware but not baseband, Can it be done?

Discussion in 'Jailbreaks and iOS Hacks' started by jir591, Nov 13, 2009.

  1. jir591 macrumors newbie

    Nov 13, 2009
    Hey guys,

    Just got my at Iphone 3Gs It has firmware 3.0.1 and baseband 04.26.08. It was already unlocked using Ultrasn0w (Cydia). First, should I upgrade to 3.1.2 or just leave it alone? If I do the upgrade to 3.1.2, how do I keep the 04.26.08 baseband? I've read a lot but still a bit confused. Thanks.
  2. polobreaka macrumors 6502a

    Aug 10, 2009
    Huntington Beach, CA
    use pwnage tool to build a custom ipsw. that will only update your fw.

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