Results 1 to 2 of 2
Discuss [Firmware] [Solution] Downgrade from 2.0 5a347 to 1.1.4 at the iPhone Developer Exchange - Hackint0sh.org; ...
  1. #1
    Advanced Array

    Join Date
    Apr 2008
    Location
    Florida
    Posts
    37
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Default [Firmware] [Solution] Downgrade from 2.0 5a347 to 1.1.4

    It IS possible to downgrade from 2.0 5a347 to 1.1.4

    There are many conflicting posts floating, about bricking the iPhone with 2.0 5a347 if you attempt to downgrade.
    At first it gave me loads of trouble to downgrade but there is a way out if you have the tools.

    Using common download procedures, DFU mode results in error 1600 and restore mode in error 20.

    What I used (may not be required for everyone but worked for me):
    MAC iTunes 7.7d31 at least
    OS 2.0 5a308
    WIN iTunes 7.6.2
    OS 1.1.4 original
    MAC iphone-virginizer.blogspot
    Pwnage Tool 1.1
    OS 1.1.4 Custom Neutered

    How I downgraded my 2.0 5a347

    - I first downgraded to 2.0 5a308 with iTunes 7.7 (this method may expire if 5a308 expires). Why 5a308...? Donít know, just chose it.
    - Then I downgraded to 2.0 5a258f. Got error 1015.
    - I switched over to Vista and launched iTunes 7.6.2.
    - While in iTunes, I put it in DFU mode. (RESTORE mode wont work...) This part was tricky as it would not go into real DFU. It took several tries to get it.
    - I downgraded to 1.1.4 and got error 1015. I tried to kick it out of Restore with iLiberty but only worked after installing again 1.1.4.
    - I used iphone-virginizer.blogspot to downgrade the Base Band.
    - At this point I Pwned and installed my custom 1.1.4
    - Finally got a working device with BaseBand 04.02.13_G (note: BootNeuter did give an error at startup that I missed reading, but I was fully working)

    Optional:
    -I then upgraded my baseband back to my unlocked 04.05.04_G
    # ./bbupdater -v
    Resetting target...
    pinging the baseband...
    issuing +xgendata...
    firmware: DEV_ICE_MODEM_04.02.13_G
    eep version: EEP_VERSION:208
    eep revision: EEP_REVISION:1
    bootloader: BOOTLOADER_VERSION:4.6_M3S2
    fls/eep pair: matches
    Done
    ./bbupdater -f ICE04.05.04_G.fls -e ICE04.05.04_G.eep
    # ./bbupdater -v
    Resetting target...
    pinging the baseband...
    issuing +xgendata...
    firmware: DEV_ICE_MODEM_04.05.04_G
    eep version: EEP_VERSION:208
    eep revision: EEP_REVISION:1
    bootloader: BOOTLOADER_VERSION:4.6_M3S2
    fls/eep pair: matches
    Done
    # launchctl load /System/Library/LaunchDaemons/com.apple.CommCenter.plist
    - I upgraded to 5a345, installed my apps and wait for tomorrow...



  2. #2
    Amazingly Knowledgeable Array DJ McG's Avatar

    Join Date
    Dec 2007
    Location
    United States
    Posts
    809
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    59

    Default

    There are 3 guides like this! Either they need to be merged or some need to be closed. This is a good guide but please dont post when there are alrady some in existence...


    iPhone "2G" - 3.1.3 - Jailbroken + iPhoDroid
    iPhone 4 - 4.0.2 - Not jailbroken (yet)


 

 

Similar Threads

  1. [Downgrade][Solved] 2.0 5a347 to 1.1.4 ?
    By vbman213 in forum iPhone "2G" (Rev. 1)
    Replies: 4
    Last Post: 07-17-2008, 05:48 PM
  2. [Firmware][Solution] Downgrade from 2.0 to 1.1.4
    By geircito in forum iPhone Developer Exchange
    Replies: 32
    Last Post: 07-14-2008, 12:07 PM
  3. [Firmware] 2.0 > Can 5A345 upgrade to 5A347?
    By robcorn in forum iPhone Developer Exchange
    Replies: 3
    Last Post: 07-12-2008, 08:49 PM
  4. [Firmware][Solution] 2.0 > How to downgrade back to 1.1.4
    By chrisfromohio in forum iPhone Developer Exchange
    Replies: 14
    Last Post: 07-12-2008, 03:14 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin®
Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.
Search Engine Friendly URLs by vBSEO
(c) 2006-2012 Hackint0sh.org
All times are GMT +2. The time now is 09:47 AM.
twitter, follow us!