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  • 1.1.1 Baseband Downgrade Achieved!
    cash edit: All you OSX guys out there I have written a nice guide for you, it takes a little time but i tried to be as detailed as possible.
    Click here for the Downgrade from 1.1.1 to 1.0.2 complete guide including baseband via osx


    Revan has made the windows guide click here

    All right! If any of you have "bricked" iPhones from upgrading unlocked iPhone's to 1.1.1, you are now able to downgrade without paying a dime!

    The guys over at RDGaccess.com have put together a guide on how to do it, here it is:

    "UNBRICKING 1.1.1 UPGRADE

    How To

    0. Download firmware 1.0.2 from apple: http://appldnld.apple.com.edgesuite....8_Restore.ipsw

    1. rename it to iPhone1,1_1.0.2_1C28_Restore.zip and unpack.

    2. extract the ramdisk file from it by typing

    dd if=694-5259-38.dmg of=ramdisk.dmg bs=512 skip=4

    3. mount the ramdisk by doubleclicking it (on mac). On windows use some HFS tools to peek inside it or get the files from someone who extracted it already.

    4. Put your phone into DFU mode and do option-restore in iTunes. This will reflash everything to 1.0.2. You will get an error at the end because it couldnt reflash the baseband. You will end up with a yellow triangle.

    5. Quit iTunes, launch iNdependence and quit it again, relaunch iTunes. Press the power button on the phone for 3-4 seconds. After like 10 seconds you end up on the activation screen.

    6. Complete the Downgrade by Jailbreaking / Activating, Installing SSh on to the phone etc. There are tons of wiki's about that so I won't repeat. (probably also true for step 4,5)

    7. Extract the baseband firmware and EEPROM files of 3.14 from the ramdisk of firmware 1.0.2. The files are named ICE03.14.08_G.eep and ICE03.14.08_G.fls and are located under /usr/local/standalone/firmware.

    8. Get the Secpack of baseband firmware 4.0. Its at the bottom of this post.

    9. Download ieraser2 from http://www.fink.org/ieraser/ or from Geohot's blog.

    10. Install all the tools on to the phone (i use the location /usr/local/bin)needed to get ssh access to the 1.0.2 firmware phone and upload ieraser2, the secpack, the firmware 3.14's FLS and EEP file and anySIM 1.0.2.

    11. ssh to the phone. Stop CommCenter? by typing:

    launchctl remove com.apple.CommCenter?

    12. run bbupdater -v. it will tell you you run version 4.01 of the baseband.

    (bbupdater is a tool by apple which is also on the ramdisk)

    13. run ieraser2. This will WIPE your baseband, given a file "secpack" is in the same directory and this is a version 4 secpack.

    14. run " bbupdater -v " again. it will not find any firmware now. 15. run " bbupdater -e ICE03.14.08_G.eep -f ICE03.14.08_G.fls " 16. run " bbupdater -v " it will tell you you run version 3.14 At this point in time you will still have a IMEI number starting with 004999... and its not of use yet. So still bricked but at least downgraded to version 3.14.

    17. run anySIM Version 1.0.2 (note that older versions might not be good here as 1.0.2 has a lot of fixes for this kind of stuff).

    Now you have a unlocked 3.14 baseband with IMEI being your original one! Congratulations you now fully recovered from your update 1.1.1 and are back to 1.0.2.

    If you want to return to virgin state again you can stop the commcenter again and repeat " bbupdater -e ICE03.14.08_G.eep -f ICE03.14.08_G.fls " again to reflash the "locked" version of the baseband.
    "

    RDGaccess

    All files needed are here
    This article was originally published in forum thread: 1.1.1 Baseband Downgrade Achieved! started by Kyle Matthews View original post
    Comments 178 Comments
    1. Mirza513's Avatar
      Mirza513 -
      Quote Originally Posted by cyber_bilal View Post
      can we have a windows guide too??
      use mine, i did it in windows
    1. Cody Overcash's Avatar
      Cody Overcash -
      Quote Originally Posted by meatwagon View Post
      i cant get com.apple.CommCenter? to stop
      launchctl remove error: No such process


      cash, any word on your tutorial?????
      uh yep, all the screenies are taken, wikifying as i type this
    1. meatwagon's Avatar
      meatwagon -
      cant wait!!!!!
    1. jacobzking's Avatar
      jacobzking -
      Cash, I noticed when I try and run the "dd=... command that it shows ***-38.dmg but when i download the firmware, it shows ***-5.dmg instead of -38. I ran the command in terminal and I am able to get a ramdisk, but when I try and mount it, it says no mountable disk. any idears?
    1. meatwagon's Avatar
      meatwagon -
      jacob. at the end to the tutorial, just downlaod the zip file... all the files you need ar there. you dont have to mtn anything.
    1. Cody Overcash's Avatar
      Cody Overcash -
      if you feel the need to watch over my shoulder as i go . . .
      http://modmyi.com/wiki/index.php/Dow...1_to_1.0.2_OSX
    1. meatwagon's Avatar
      meatwagon -
      you rule .. ya know that??

      we need pngs 34, 35, 36,37 thats the step im at!
    1. Cody Overcash's Avatar
      Cody Overcash -
      oh and everyone failing its because you are using secpack 3 not secpack 4, I have dug in and created a secpack 4 which will be in my guide :P

      Quote Originally Posted by meatwagon View Post
      you rule .. ya know that??
      yep but ppl telling me helps grow the internet big penis syndrome
    1. meatwagon's Avatar
      meatwagon -
      wich ssh ftp are client are you using?
    1. Cody Overcash's Avatar
      Cody Overcash -
      transmit but yo can use wtvr you want
    1. JedixJarf's Avatar
      JedixJarf -
      Good Info, this is sweet.
    1. Pl4ter's Avatar
      Pl4ter -
      wow..nice..good work guys!!!
    1. meatwagon's Avatar
      meatwagon -


      why do your files in that DIR differ from mine???
    1. jacobzking's Avatar
      jacobzking -
      Quote Originally Posted by meatwagon View Post


      why do your files in that DIR differ from mine???
      same here, i have a big long list of crap in my bin file
    1. mofolo's Avatar
      mofolo -
      will there be a one click method for this??
    1. jacobzking's Avatar
      jacobzking -
      when i try and run "launchctl remove com.apple.CommCenter?" it says "launchctl remove error: No such process"
    1. meatwagon's Avatar
      meatwagon -
      i dotn think i can do this until i have written words for some parts.. just cause my files are differnt than his even my baseband folder has less files.

      Quote Originally Posted by jacobzking View Post
      when i try and run "launchctl remove com.apple.CommCenter?" it says "launchctl remove error: No such process"
      yeah ditto
    1. dotdd's Avatar
      dotdd -
      Just did on two out of box iPhones with 1.1.1 software! It worked great! But if you download the required files in this thread. Remember to rename the secpack.bin to secpack.

      D.
    1. meatwagon's Avatar
      meatwagon -
      # ./bbupdater -v
      zsh: permission denied: ./bbupdater
    1. ddochi11's Avatar
      ddochi11 -
      Quote Originally Posted by meatwagon View Post
      # ./bbupdater -v
      zsh: permission denied: ./bbupdater
      i get the same thing