iOS 4.0 What should i do before update to ver 4.0?

Discussion in 'iOS Jailbreak & Cydia' started by djmaxlover, Jun 21, 2010.

  1. djmaxlover

    djmaxlover Member

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    What i have to do before update to os 4.0 ? I mean like backup or restore it first...and do i need to re-jail break it..?
    I'm using ipod touch 3rd 32G, version 3.13
  2. Bubalooshi

    Bubalooshi Active Member

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    I would back everything up.
  3. bobby681

    bobby681 Active Member

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    You should back up your SHSH blob, otherwise you wont be able to downgrade your firmware back to 3.1.3. There's probably a step by step tutorial on this site on how to do it if you haven't already done it.
  4. brilldoctor

    brilldoctor New Member

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    only if you have an iphone 3gs, or a mc ipod touch
    ------------------double post merged------------------
    good idea
  5. bobby681

    bobby681 Active Member

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    In his post he says he as the 32GB 3rd gen which are all MC models. They were only released last september

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