Does a jailbreak affect/harm iTunes Backup data?

Discussion in 'Jailbreaks and iOS Hacks' started by urtext, Jul 23, 2010.

  1. urtext macrumors newbie

    Joined:
    Apr 6, 2010
    Location:
    The Netherlands
    #1
    I am a perfectionist, and I am curious. Once, a little while ago, I jailbroke my iPhone 3G (somewhere in de OS 3 saga). I was quite surprised by some new features and I kept the jailbreak for a while. So I got texted, my call history extended et cetera.

    But for some reason I wanted to get back to Apples pure, not modded, OS. But I still wanted to have my SMS history and Call History et cetera. On quite a few forums I read about an easy DFU mode and restore with the latest backup I made within iTunes. Written at those forums was that no jailbreak data was backupped in iTunes. Of course, this was a normal backup in iTunes, but from a jailbroken iPhone. I did my restore and my iPhone worked quite well. In fact it still does perfectly, with all histories and logs, in iOS 4.0.1.

    But my question is: is there still some data in my iPhone right now from when it was jailbroken, tranfered with a backup created when it was jailbroken? In other words: does a jailbreak affect/harm a usual iPhone backup in iTunes in any way?

    So, do I still walk around with some weird strings in my iPhone, or some 0's and 1's in some file?

    Many thanks in advance!
     
  2. SpaceKitty macrumors 68040

    SpaceKitty

    Joined:
    Nov 9, 2008
    Location:
    Fort Collins Colorado
    #2
    Yes, there will always be bits and pieces left behind from a backup that was jailbroken.

    I noticed on a 3G phone whenever I would restore from a backup that was jailbroken, the battery percentage would carry over and so would the custom AT&T logo. There are other things too, these are just the ones I always noticed.
     
  3. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #3
    Texts, game saves and settings are not backed up (synced) in iTunes
    You get those back if you restore to a backup instead of set up as new.

    Everything else, apps, music, movies, ringtones, etc syncs back from iTunes.

    A DFU restore is the most complete restore. There can be left over jailbreak mods if you choose restore to backup instead of set up as new as a few items can come back via a restore to backup.

    I always choose set up as new.
     
  4. TMar macrumors 68000

    TMar

    Joined:
    Jul 20, 2008
    Location:
    Ky
    #4
    They are backed up but not synced is what I believe you are trying to say. It's a little confusing with the wording.
     
  5. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #5
    Perhaps my grammer is not as perfect as it might be. But I think the concept is correct:rolleyes:
     
  6. urtext thread starter macrumors newbie

    Joined:
    Apr 6, 2010
    Location:
    The Netherlands
    #6
    Thanks a lot for this information. There is not much about this topic known I have the idea while looking at the Internet.

    As you maybe know, iPhone 4 is coming to The Netherlands this Friday and I'd like to make a 'fresh start', no jailbreak stuff in old backups, just set it up 'as new'. And since the structure of the iTunes Backup has changed in iOS 4 and iTunes 9.2, you cannot put back you sms history by simply copy/paste the '3d0d7e5fb... database file' into the new backup files... Just restoring sms history and call logs is not that easy anymore, but ok, there's not much wrong with a fresh start. Thanks again!
     

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