If I jailbreak, will I lose all my app data?

Discussion in 'Jailbreaks and iOS Hacks' started by danetello, Dec 29, 2010.

  1. danetello, Dec 29, 2010
    Last edited: Dec 29, 2010

    macrumors 6502

    Joined:
    Dec 23, 2010
    Location:
    London, UK
    #1
    I have got an iPhone 4 with firmware 4.2.1. If I jailbreak it and then restored from a backup, would I lose all my app settings/data like game saves, log in details etc?
     
  2. macrumors 65816

    Benji222

    Joined:
    Dec 21, 2009
    Location:
    So Cal
    #2
    Unless you have shsh blobs saved from a prior firmware and want a stable system unlock there is no jailbreak for 4.2.1 so far
     
  3. macrumors 6502a

    Chad H

    Joined:
    Feb 13, 2008
    Location:
    Auburn, AL
    #3
    I thought RedSn0w had a unlock for the iPhone4 running 4.2.1?
     
  4. macrumors 65816

    Benji222

    Joined:
    Dec 21, 2009
    Location:
    So Cal
    #4
    An unlock is much different than a jailbreak.
    Jailbreak opens the filesystem, unlock allows for different carriers.

    There is a beta out but it requires shsh blobs for 4.2.1b which was a previously released version of 4.2.1.

    There is a tethered verison out. Sorry for the misinformation.
    I would just never use a tethered jailbreak!
    http://www.redmondpie.com/jailbreak...g-ipad-ipod-touch-with-redsn0w-0.9.6b4-guide/
     
  5. macrumors 6502

    j.dstasio

    Joined:
    Jun 9, 2009
    Location:
    South Jersey
    #5
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8B117 Safari/6531.22.7)

    The latest Redsn0w will jailbreak your iPhone 4 without losing or resetting data. It is a tethered jailbreak. Meaning after a reboot or powering down your phone none of the jailbreak apps/ tweaks work until you hook it up to a computer and re-run Redsn0w. Works fine for some. More trouble than it's worth for others.
     
  6. thread starter macrumors 6502

    Joined:
    Dec 23, 2010
    Location:
    London, UK
    #6
    Ok I shall probably wait for the untethered jailbreak to come out. But when I do jailbreak it, would I lose all my application data like game-saves and high scores etc?
     
  7. macrumors 68020

    Joined:
    May 1, 2009
    #7
    You shouldn't lose those.
     

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