Upgrading from 2.2.1 thats already jailbroken.

Discussion in 'Jailbreaks and iOS Hacks' started by philskillz, Jul 4, 2009.

  1. philskillz macrumors newbie

    Jun 13, 2008
    Is there any guides handy that show how to upgrade a jailbroken 2.2.1 3G to 3.0? From what I understand if I just upgrade the FW and then re jailbreak I will loose 500MB. Any guidance would be awesome.. Thanks.
  2. Moi un Mouton macrumors 68000

    Mar 18, 2008
    Bracknell UK
    Here's what to do:

    1. Back up your phone. Put the phone into DFU mode, iTunes will detect it. Let iTunes restore it to 3.0. This is how you do DFU: http://www.youtube.com/watch?v=ofpinyGlQ8I

    2. Jailbreak your phone with RedSn0w like this:
    - http://www.iclarified.com/entry/index.php?enid=4301 (Windows)
    - http://www.iclarified.com/entry/index.php?enid=4303 (Mac)

    3. If you want to unlock, unlock the phone with UltraSn0w like this:
    - http://www.iclarified.com/entry/index.php?enid=4253

    4. Restore from your backup.

    You should now be OK.

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