General Updating Jailbroken Device

Discussion in 'Jailbreaks and iOS Hacks' started by ILowry82, Dec 20, 2014.

  1. ILowry82 macrumors regular

    Joined:
    Sep 26, 2014
    #1
    I am new to jailbreaking. I'm getting ahead of myself, but once a new update appears from apple, how do I go about updating the phone? I understand I have to wait until that software is jailbroken, but do I upate (losing jailbreak in the process) and re-jailbrake or is there a way to upgrade and keep my tweaks? Or am I stuck on 8.1.2 forever (just kidding)?
     
  2. jjk454ss macrumors 601

    jjk454ss

    Joined:
    Jul 10, 2008
    #2
    You need to restore with iTunes. I always put the phone into DFU mode and restore. As far as tweaks I always make that a good time to start over, just reinstalling what I need to. But there is apps in Cydia to backup and restore tweaks.
     
  3. ILowry82 thread starter macrumors regular

    Joined:
    Sep 26, 2014
    #3
    Ok so a DFU restore then. Will that wipe my phone? Would I be able to then restore from a backup?
     
  4. jjk454ss macrumors 601

    jjk454ss

    Joined:
    Jul 10, 2008
    #4
    It will wipe the phone, but you can then restore from a backup.
     
  5. ILowry82 thread starter macrumors regular

    Joined:
    Sep 26, 2014
    #5
    Just clarifying, if I update to 8.2, will it let me restore a 8.1.2 backup?
     
  6. jjk454ss macrumors 601

    jjk454ss

    Joined:
    Jul 10, 2008
    #6
    Yes
     
  7. iphonedude2008 macrumors 65816

    iphonedude2008

    Joined:
    Nov 7, 2009
    Location:
    Irvine, CA
    #7
    The way I do it is just update through iTunes. Keeps all your tweak settings. Once updated just jailbreak again and install your tweaks are everything will be fine don't do a restore. Too much work.
     
  8. Syndicate0017 macrumors 6502

    Joined:
    May 3, 2013
    #8

    You do know that each time you do it that way, you lose half a gig in storage space? Take a backup, restore in iTunes, and then restore backup. It doesn't make sense to cut corners.
     
  9. iphonedude2008 macrumors 65816

    iphonedude2008

    Joined:
    Nov 7, 2009
    Location:
    Irvine, CA
    #9
    How do I loose ½ a gig? I've done this on a 16gb iPhone many times to no detriment
     
  10. Syndicate0017 macrumors 6502

    Joined:
    May 3, 2013
    #10

    Remnants of the previous jailbreak are still left behind. You absolutely are losing storage space each time you do it that way. It even tells you in cydia that in order to upgrade "with the best use of disk space" first restore in iTunes.
     
  11. iphonedude2008 macrumors 65816

    iphonedude2008

    Joined:
    Nov 7, 2009
    Location:
    Irvine, CA
    #11
    That is true that remnant are left behind. However, everything in the system partition of the disk is replaced. Meaning any jailbreak app, Cydia, and any tweaks library is erased. The remnants are the preference files which are what the OP basically wants if he wants to keep jb data. I think no themes also persist, but again, the op clearly wants to preserve as much as possible.
     
  12. jjk454ss macrumors 601

    jjk454ss

    Joined:
    Jul 10, 2008
    #12
    It's all your own preference, sure files are left behind, but wether that will ever make a bit of difference? Probably not really.

    Me, I just like starting over fresh. Makes me feel better:D.
     
  13. Syndicate0017 macrumors 6502

    Joined:
    May 3, 2013
    #13

    More than the preference files are saved when you hit upgrade (restoring the backup restores those anyway). Cydia adjusts your file system and moves files around. Those files (as it's not a straight 1:1 replacement) get left behind. And you lose about 500 MB of storage space.
     
  14. gman901 macrumors 6502a

    Joined:
    Sep 1, 2007
    Location:
    Houston, TX
    #14
    So if I erase and restore to 8.1.2, will all the files that I store on the device be removed, i.e roms, movies, etc?
     
  15. bbrks macrumors 65816

    bbrks

    Joined:
    Dec 17, 2013
    #15
    Don't touch erase button on the phone, if you are already jailbroaken.
    Only restore.....and yes, everything will be deleted.
     
  16. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #16
    That's a very bad idea and advised strongly not to by jb devs.
    You want to risk it and do it the lazy way go for it but others should not listen to the above advice.
    If you want a stable and solid phone and jb always restore to stock ios and then jb and install your hacks again.
    Do not do what the user above suggests.
     
  17. curiousgg macrumors member

    Joined:
    Mar 20, 2010
    #17
    So to clarify:
    Back up device to iTunes
    Restore (not update) via iTunes to new iOS
    Jailbreak
    Restore via iTunes to backup

    ??

    What happens if you don't DFU?
     
  18. bbrks macrumors 65816

    bbrks

    Joined:
    Dec 17, 2013
    #18
    Probably nothing, but to make it as clean as possible, DFU is no. 1
     
  19. eelw macrumors 6502a

    eelw

    Joined:
    Sep 19, 2012
    #19
    DFU really only needed if you've corrupted the OS like if you tried Erase on a JB device. Restore perfectly fine.
     

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