General iOS and Jailbroken devices

Discussion in 'iOS 9' started by DCIFRTHS, Aug 6, 2016.

  1. DCIFRTHS, Aug 6, 2016
    Last edited: Aug 6, 2016

    DCIFRTHS macrumors 6502a

    DCIFRTHS

    Joined:
    Jan 25, 2008
    #1
    No data needs to be saved or recovered from the device in question.

    I was just given an iPad 4 that was jailbroken sometime throughout its lifetime. It seems to be running Apple's iOS now, but I need to be sure that all of the unauthorized code has been removed form the device. I am totally in the dark regarding jailbreaks, so I am asking for advice here...

    Once an Apple device has third party firmware / iOS bits loaded onto it, is it possible to rid the device of the non-Apple
    bits?

    My goal is to use this iPad as a TRUSTED device that I can do banking on, store passwords, my Apple ID, personal documents, photos etc. I want to be one hundred percent sure that this device is only running Apple firmware and iOS, and that no third party code lives on the device.

    If the iPad had been loaded with a third party firmware, at any point in it's life, what would be the correct procedure to completely rid the device of this code? A restore via iTunes? Would that be thorough enough? Could I possibly infect my computer if the iPad has compromised firmware / OS code on it?

    Is there a way to determine if the device was ever jailbroken? It was given to me erased, and on what appears to be the iOS setup program.

    All advice would be greatly appreciated.

    EDIT: I am doing research on my own, but I want to hear the opinions of the people here in the forums as I often get great insight from fellow community members, and this is a critical issue to me - I would rather leave no stone unturned :)
     
  2. Shirasaki macrumors 603

    Shirasaki

    Joined:
    May 16, 2015
    #2
    There was a tool called SysSecInfo specifically designed to help determine if a device is jailbroken or not. Now it has been pulled from App Store. This utility should be able to help you determine if your iPad 4 is clean or not, if you can find someone still keep its app ipa file.

    Other than that, no way we customers common use can perfectly clean and wipe out flash drive and install iOS over it, like we often do to reinstall Mac OS X on a Mac.
     
  3. cebixd macrumors regular

    cebixd

    Joined:
    Dec 2, 2015
    Location:
    Croatia
    #3
    Theres is no way to know that. As far as i know. Once you do a clean restore its should clean everything, i mean everything.
    On android you can know if the device was rooted but not on the iPhone
     
  4. DCIFRTHS thread starter macrumors 6502a

    DCIFRTHS

    Joined:
    Jan 25, 2008
    #4
    Do you think that it I brought it into an Apple store, they would be able to do a diagnostic test and tell me?
     
  5. cebixd macrumors regular

    cebixd

    Joined:
    Dec 2, 2015
    Location:
    Croatia
    #5
    They cant know if the device was jailbroken or not
     
  6. rovolisgiorgos macrumors newbie

    rovolisgiorgos

    Joined:
    Jun 29, 2015
    Location:
    Greece
    #6
    DFU restore will clean the device completely.
     
  7. cebixd macrumors regular

    cebixd

    Joined:
    Dec 2, 2015
    Location:
    Croatia
    #7
    Thats right
     
  8. DCIFRTHS thread starter macrumors 6502a

    DCIFRTHS

    Joined:
    Jan 25, 2008
    #8
    So the bottom line is that even if I do a complete restore, using iTunes, and set it up as new device, there could be some non-Apple code that remains on the device?
    --- Post Merged, Aug 7, 2016 ---
    Oops. Sorry I missed these posts. I will google how to properly do a DFU restore.

    Just to put my mind at ease... If I do a DFU restore, is there any chance of non-Apple code being left on the device when I am done?
     
  9. bandofbrothers macrumors 601

    bandofbrothers

    Joined:
    Oct 14, 2007
    Location:
    Uk
    #9
    The answer is none knows 100%

    I understand your apprehension about this.

    I can only say I've been JB'ing for years and used Internet banking etc on a JB and then restored to stock iPhone with no issues.

    The only way as I see it is sell the device and buy one from Apple.
     
  10. simon lefisch macrumors 6502a

    simon lefisch

    Joined:
    Sep 29, 2014
    #10
    If you do a DFU restore, it will be like pulling the iPad out of the box for the first time.
     

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