iPhone iPhone 3GS, 3.1.3 upgrade

Discussion in 'iOS 5 and earlier' started by jay4me, Feb 25, 2013.

  1. jay4me macrumors newbie

    Feb 25, 2013
    Hi Expert,

    I am using iphone 3GS with 3.1.3(7E18) version, its model is MC131B. I would like to upgrade it to allowable version of IOS. Please note my phone is jailbroken.

    Could you please tell me if I can upgrade to any newer version if yes then which version should i go for? And how can I do that? I have heard to upgrade IOS 3.1 to newer version, it puts up some problem with the phone.

    Appreciate your reply.
  2. TacticalDesire macrumors 68020


    Mar 19, 2012
    If you have a 3GS you can currently go up to iOS 6.1.2

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