Downgrade to 1.0.2 baseband after 1.1.2 - Instructions for all

Discussion in 'Jailbreaks and iOS Hacks' started by Midgetinabikini, Nov 14, 2007.

  1. Midgetinabikini macrumors regular

    Joined:
    Aug 1, 2006
    #1
    First of all, downgrade and jailbreak+ssh+activate 1.0.2, install BSD subsystem and Open-ssh. i used iNdependence to fully unlock the iPhone and installer.app to install BSD and Open-ssh.

    http://cats.omerkatzir.com/Restore Baseband.ziphttp://cats.omerkatzir.com/Restore Baseband.zip

    1. put all files in /usr/bin folder on the iphone, Cyberduck is the best way to do so.
    2. SSH into the phone (user: root pass: dottie) and stop the CommCenter by typing launchctl remove com.apple.CommCenter
    3. run bbupdater -v
    4. cd /usr/bin/ and then chmod +x ieraser
    5. run ieraser (just type ieraser) this will WIPE your baseband.
    6. run bbupdater -v again. it will not find any firmware now.
    7. run bbupdater -e ICE03.14.08_G.eep -f ICE03.14.08_G.fls
    8. run bbupdater -v it will tell you you run version 3.14
    9. restart the iphone

    the zip file contains all the files you need to put in /usr/bin. you can just copy&paste the commends. i guess you can do the same under Windows, i really dont recall how to use ssh in Windows.

    Please, do it slowly! if you have any problem, you can mail me at: komer83@gmail.com
     
  2. DenniZ macrumors 6502a

    Joined:
    Oct 5, 2007
    Location:
    Liverpool, UK
  3. Midgetinabikini thread starter macrumors regular

    Joined:
    Aug 1, 2006
  4. duskyyouth macrumors newbie

    Joined:
    Aug 17, 2007
    Location:
    Philadelphia, PA
  5. CrockettGTO macrumors regular

    Joined:
    Oct 19, 2007
    #5
    I am wondering the same thing
     
  6. imacdaddy macrumors 6502a

    Joined:
    Feb 2, 2006
    #6

    Hi Midgetinabikini :D, I've got a permission denied with I ran bbupdater -v in step 3. I suppose these are the same steps found here. http://www.winandmac.com/mobile/iphone/unlock-iphone-112-via-downgrade/#comment-1680

    How long does the process take when running ieraser? My terminal is stuck at "Waiting for data..."

    -sh-3.2# launchctl remove com.apple.CommCenter
    -sh-3.2# 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:3.9_M3S2
    Done
    -sh-3.2# cd /usr/bin/
    -sh-3.2# chmod +x ieraser
    -sh-3.2# ieraser
    Resetting the Baseband...Done
    Opened: /dev/tty.baseband
    iEraser: tool by geohot
    thanks to gray and the dev team for the implementation
    thanks to nightwatch for the awesome toolchain
    and thanks to anonymous, iProof, lazyc0der, and dinopio for the idea for this cool trick
    this tool erases your main fw, starting at 0x20000. you need this for the testpoint to work
    you need a file called secpack matching your current firmware version in this folder
    see http://iphonejtag.blogspot.com for instructions on finding this file
    Waiting for data...
     

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