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Discuss how to downgrade firmware version and also bb!!! at the iPhone "2G" (Rev. 1) - Hackint0sh.org; 1. downgrade to 1.0.2 2. jailbreak, activate, install ssh and sftp 3. copy files 4. ...
  1. #1
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    Default how to downgrade firmware version and also bb!!!

    1. downgrade to 1.0.2
    2. jailbreak, activate, install ssh and sftp
    3. copy files
    4. use 4.x secpack and ieraser to erase the bb
    5. put iphone into DUF mode
    6. restore to 1.0.2
    7. wait looooooooog time.
    8. once it's finished you have 3.x bb version.

    note: use itunes 7.42, lower version will ended up restore fail.

    worked on 12 pieces iphone.
    Last edited by CrUmp; 10-13-2007 at 07:14 AM.



  2. #2
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    i used 7.4.1.2... no errors or failed downgrades

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    Default Please Help

    I dont know whats going wrong with my downgrade but I started many times and I always get the same error

    I bring it from 1.1.1 (OTB) with iTunes to 1.0.2 (iTunes stops with Error (1013)? - is that the normal error?)
    then i "open" it with iNdependence - all fine
    install AppTap -> BSD Subsystem -> CommunitySources ->OpenSSH .... all fine ....
    copying all files into usr/bin - open terminal ->

    launchctl remove com.apple.CommCenter
    cd /usr/bin
    bbupdater -v
    chmod +x ieraser ..... all fine until here, but if i give run ieraser (just type ieraser) I get following error

    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 0×20000. 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…
    Got Header: 77 0b cc
    zsh: bus error ieraser

    after that bbupdater shows me the old baseband

    any ideas whats going wrong there ?

  4. #4
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    Quote Originally Posted by eintausendstel View Post
    Waiting for data…
    Got Header: 77 0b cc
    zsh: bus error ieraser
    You need to put your secpack file in the same directory as ieraser, but make sure the file name is SIMPLY "secpack". No extension.

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    yes I know ... I did it but i always have the same problem


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    Quote Originally Posted by stelth View Post
    You need to put your secpack file in the same directory as ieraser, but make sure the file name is SIMPLY "secpack". No extension.
    so it mean that ieraser cant find the secpack - could it be?
    but I just download that secpack40113.bin and rename it in the finder(Mac) to secpack and copy it to my iPhone -> usr/bin/ - together with all other files inclusive that ieraser

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    Quote Originally Posted by eintausendstel View Post
    so it mean that ieraser cant find the secpack - could it be?
    but I just download that secpack40113.bin and rename it in the finder(Mac) to secpack and copy it to my iPhone -> usr/bin/ - together with all other files inclusive that ieraser
    Did you remember to first go to the folder?

    #cd /usr/bin

  8. #8
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    yes I did ....

    so I have to admit that I dont know much about the treminal ... so could be that i did something wrong ...

    am I right to put all the files iPhone -> /usr/bin/ ?

    I start to doubt me

  9. #9
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    same problem for me, getting this damn error

  10. #10
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    I've found the problem for me .....

    I renamed that "secpackXXX.bin" into "secpeck" in the Finder(Mac) and my sftp client (Transmit) renamed it after copying to the iPhone into secpack.bin ....
    so ieraser could not find the right package


    now all its fine


 

 

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