3GS 3.1.2 (05.11.07) to 4.2.1?

Discussion in 'Jailbreaks and iOS Hacks' started by sovereign, Mar 26, 2011.

  1. sovereign macrumors 6502


    Feb 13, 2009
    The forum will not allow numerical searches, so... I have stayed at 3.1.2 to keep my free internet tethering, but would like to know how I can get into the "4s". 4.2.1 seems to be where I can end up with an untethered JB. I have downloaded the 4.2.1 restore.ipsw. Via tinyumbrella I have found that I do in fact have the 4.2.1 blob saved, as well as several others. Can I create a custom 4.2.1 firmware with PwnageTool and preserve a non-ipad baseband and go straight to 4.2.1?
  2. LucasG macrumors regular


    Aug 4, 2010
    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/8C148a Safari/6533.18.5)

    Yup that's exactly how you'd do it. :)

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