Moving from 4.0 (Beta 1) to 3.1.3?

Discussion in 'Jailbreaks and iOS Hacks' started by Toximityx, Apr 8, 2010.

  1. Toximityx macrumors newbie

    Joined:
    Apr 8, 2010
    #1
    Hello all,

    Super excitement and transition to 4.0 on my 3G but I train a lot so try a DFU and restore, but alas the error "error = 1015" appears at the end of the restored thus:

    Error 1015: This error appears when attempting to upgrade to an older version of the iPhone or iPod touch. This may occur when you try to perform a restore using an old file. Ipsw. The upgrade to an earlier version is not supported. To resolve this problem, try performing a restore using the latest version of the software of the iPhone or iPod touch available from Apple.

    Not possible .. The trouble comes from the baseband I suppose?

    (French User) :rolleyes:
     
  2. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #2
    Others (the hackers) have stated you cannot downgrade from 4.0 back to 3.1.3.
     
  3. AppleHack23 macrumors member

    Joined:
    Apr 7, 2010
    Location:
    New Jersey
    #3
    You need to restore the device again the same way after you got the 1015 error, if you get it again, you're good. Now, you need to install some things, I only have the Mac version available, sorry if you use Windows. Go to http://www.applehack23.com/AppleHack23/Downloads.html, and find iRecovery, and libusb, (libusb for your operating system). Once those are installed go to http://www.applehack23.com/AppleHack23/iRecovery_Commands.html

    Hope this helps!

    *EDIT

    Oh I'm sorry, iClarified said to Jailbreak with redSn0w after the second 1015 error. But I guess its running the same commands.
     
  4. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #4
    That would suck if it really is true. I hope the Dev-Team finds out a way around it.
     
  5. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #5
    What really Sucks is why all these fools rush to put 4.0 beta on their phone.
    Doesn't run unless you have a developers account and it's a beta.
    Some never learn.
     
  6. Toximityx thread starter macrumors newbie

    Joined:
    Apr 8, 2010
    #6
    Hello,

    Thks for you responses... I'm registered of the Developer of course :D

    I go to try the solution from AppleHack23

    Thks
     
  7. ltldrummerboy macrumors 68000

    ltldrummerboy

    Joined:
    Oct 15, 2007
    #7
    There shouldn't be a problem downgrading as long as I've got my SHSH files backed up, right?
     
  8. fishkorp macrumors 68020

    fishkorp

    Joined:
    Apr 10, 2006
    Location:
    Ellicott City, MD
    #8
    That's not the issue here. That only comes into play with firmware signing.
     
  9. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #9
    I have read the phone goes into a DFU loop if you try to downgrade.
     
  10. robcatto macrumors newbie

    Joined:
    Nov 4, 2009
    #10
    Hey hows it going :)

    Unfortunately I did the same thing and upgraded to 4.0 beta, not knowing that i would be stuck with the message "Your iPhone is not registered with the Dev program" and my iPhone would be useless because I didn't sign up my iPhone for the Dev Program.

    (Your case may be slightly different if you were registered but downgrading should work all the same)

    Anyways after fiddling round I found that I could downgrade by doing this

    1. Put your iPhone into recovery mode by

    -Plugging your iPhone into your computer/iTunes
    -Holding the Home and Sleep button for exactly 10 seconds
    -Then release the Sleep button but keep holding the Home button (the round one)
    -Keep holding the Home until iTunes finds an iPhone in recovery mode.

    2. Restore to the firmware you wish by pressing the restore button

    -I myself restored the firmware to 3.1.2

    3. You will receive the error 1015.

    -Do not click out of the error message
    -Use the appropriate jailbreak for the firmware you have downgraded to (I used blackra1n)
    -This returns my iPhone to 3.1.2 (Jailbroken)

    4. Restore iPhone to 3.1.3 or 3.1.2 to remove the Jailbreak

    Hope this works :)
     
  11. mcmonkiez macrumors member

    Joined:
    Jan 11, 2009
    #11


    when you restore on old firmware how apple let you downgrade via itunes?> does not check ur ECUID id or something?
     
  12. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #12
    And again the young and foolish rush to upgrade, having failed to learn after updating to 3.1.3...

    like lemmings swarming over a cliff !
    :cool:
     
  13. Toximityx thread starter macrumors newbie

    Joined:
    Apr 8, 2010
    #13
  14. ste1164 macrumors 6502a

    ste1164

    Joined:
    Jan 4, 2009
    #14
    Do you have an english tutorial a friend has done this to his 3G and wants to get it back.
     
  15. pkdoyle macrumors member

    Joined:
    Mar 22, 2010
    Location:
    Plano, TX
    #15
    Ok this is probably a stupid question but, can a developer with iPhone at 3.1.3 upgrade to 4.0 beta and then downgrade to 3.1.2?
     
  16. gokulagiridaran macrumors newbie

    Joined:
    Feb 6, 2006
    #16


    Thanks mate.. This worked.
     
  17. Toximityx thread starter macrumors newbie

    Joined:
    Apr 8, 2010
    #17
    Non, I don't downgrade...I register Developer.. :D
     
  18. AppleHack23 macrumors member

    Joined:
    Apr 7, 2010
    Location:
    New Jersey
    #18
    Actually no its not a stupid question. I was wondering this myself, because I think it would be good so developers can test their apps on older firmwares, so it works for people who haven't updated yet, or who don't have a computer.
     
  19. upaymeifixit macrumors 6502a

    upaymeifixit

    Joined:
    Feb 13, 2009
    #19
    I wrote a tutorial on how to downgrade (in english :D) Hopefully that will help most of the people who have run into that wall. As far as I know, iTunes will not let you downgrade, developer or not. If someone would like to try my tutorial I would love to get some feedback on it.
     
  20. ltldrummerboy macrumors 68000

    ltldrummerboy

    Joined:
    Oct 15, 2007
    #20
    Here was the process I used to revert to 3.1.3 on an early bootrom 3GS with my SHSH files previously backed up to Cydia.

    1. Enter recovery mode and restore to 3.1.2.
    2. On finish encounter something like error 1015. Use iRecovery to exit recovery mode.
    3. Jailbreak using Blackra1n.
    4. Use PwnageTool to create a custom 3.1.3 firmware.
    5. Enter recovery mode and restore using said custom 3.1.3 firmware.

    And done. The custom 3.1.3 firmware restore kept failing if I wasn't already jailbroken. iTunes would always freeze on "preparing iPhone for restore" if I skipped the 3.1.2 and Blackra1n steps.
     
  21. upaymeifixit macrumors 6502a

    upaymeifixit

    Joined:
    Feb 13, 2009
    #21
    Did you try the post right above yours?
     
  22. ltldrummerboy macrumors 68000

    ltldrummerboy

    Joined:
    Oct 15, 2007
    #22
    No, I never used DFU mode. Doing that got me 1600-type errors.
     

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