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Thread: Downgrade 3G Baseband from 2.30 to 2.28

  1. #61
    Quote Originally Posted by bbswany View Post
    It won't execute for me. I get the following error:

    -sh: ./phasebandowngrader: Permission denied

    Any ideas?
    Change the octal on the phasebandowngrader file to 0755.

  2. #62
    help you guy please i type in this "login". The user is "root" and password is "alpine" by default. Then type: "cd
    / Applications/phasebandowngrader/", then, to run the downgrader, type "./phasebandowngrader"
    AND IT SAID ROOT # PLEASE HELP THANKS. WHAT I HAVE TO DO PLEASE HELP THANKS.

  3. #63
    Thanks to TatooJack for posting a competent reply and posting as if you have had a recent bowel movement! Ill try your tutorial.

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    tattoojack (04-15-2009)

  5. #64
    My iPhone is a Part of Me lach's Avatar
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    Quote Originally Posted by him121213 View Post
    ^^^ long week is rite

    im almost sorry i spilled this one

    thats okay im confident ill break 2300 if this keeps up
    remember what you said at the start of this thread haha, guess you were right LOL

  6. #65
    Default finally got it to work!!!
    Quote Originally Posted by tattoojack View Post
    from geohots blog


    For other people who still needs a full instruction, here is an update to Tom's instruction.

    Download BBUpdaterExtreme here:
    RapidShare: Easy Filehosting

    Download BSPatch Here:
    GBAtemp.net :: Downloads :: ROM patchers & header info :: bspatch

    Here's where you'll need some command prompt skills. Extract the BSPatch program and iPhone_3G_02.28.00_baseband.zip and all related files into a folder you can remember (ex. Catcher). Also, place the ICE2_02.28.00.fls and downgrade.patch in the same folder (downgrade.patch is from Master geohot above found here: http://lpahome.com/geohot/downgrade.patch)

    Open your command prompt by hitting start, then run, and type in "cmd" without the quotes and hit enter. In the command prompt, you'll need to type

    cd Catcher

    "Catcher" is the example directory but you can replace it with wherever you've placed the BSPatch and ICE2_02.28.00.fls files in.

    Now type in:

    bspatch ICE2_02.28.00.fls patchedbaseband.fls downgrade.patch

    In the example folder, there will now be a new file called patchedbaseband.fls, which is pretty self explanatory.

    Copy that file back to your desktop or a folder that you can easily find and also copy ICE2_02.28.00.eep and BBUpdaterExtreme into the same place.

    Rename patchedbaseband.fls to ICE2_02.28.00.fls.

    Now that you have your patched baseband, your BBUpdaterExtreme and the .eep file in one place, you're ready to move them onto your phone.

    You'll need to know how to SSH into your iPhone, and I'm not going to go into detail about that, but you should be able to find that information easily.

    (you can also use DiskAid or Iphone Browser to upload the files instead of SSH)

    Copy the three files *ICE2_02.28.00.fls* - the new one that is patched
    ICE2_02.28.00.eep
    and
    BBUpdaterExtreme into /var/root
    (make sure you're not in private/var/root).

    Now, you'll need to find download and install Mobile Terminal, which can be found in Cydia or Installer, or I guess the new Icy.

    After you've gotten Mobile Terminal installed, open it up and follow these instructions carefully (capitalization counts!) to check what version of bootloader you have.

    (All case sensitive and you may need to use cd .. to change to the right directory you've uploaded the files to)

    1. Type in: su
    2. Type in the password: alpine
    3. Type in: chmod 755 BBUpdaterExtreme
    4. Type in: launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist
    5. Type in: ./BBUpdaterExtreme queryversion

    Look for "Boot Loader Version:" in the output.

    Mine said "5.09" which I can only imagine means 5.9 so I did not have the availability to downgrade.

    Here you can stop if you're like me, and don't have the option to downgrade. You can restart your phone (because the phone is now not working since the CommCenter process has stopped running) to restore it to normal, or alternatively you can type in

    launchctl load /System/Library/LaunchDaemons/com.apple.CommCenter.plist

    But you may be in luck and have 5.8, in which case, continue on to the downgrade.

    Close Mobile terminal, re-open it, and type in the following commands.


    (All case sensitive and you may need to use cd .. to change to the right directory you've uploaded the files to)

    1. Type in: su
    2. Type in the password: alpine
    3. Type in: chmod 755 BBUpdaterExtreme
    4. Type in: launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist
    5. Type in: ./BBUpdaterExtreme update -f ICE2_02.28.00.fls -e ICE2_02.28.00.eep
    6. Reboot your iPhone

    Check under Settings-General to see your (hopefully) downgraded baseband!

    As I've mentioned before, I was unable to downgrade, but in theroy this should work, according to GeoHot.

    I hope some more people have gained some understanding due to this tutorial I've written. Good Luck!

    edit:
    who knows at this point,
    gonna be a long week
    this didnt work out on the first try because
    when you use the command su on the mobile terminal it doesnt
    link you to var root.
    so i had to cd to var root and did what you said.
    and wholla!!! baseband back to 2.28 and i was able to use yellowsnow and my friends t-mobile sim card.

    its sweeeeeeeeeeet.

    once again. thank you very much for all the info and
    i couldnt be happier!!!!

    t

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  8. #66
    ok, So i tried YellowSn0w even though the firmware still says Modem Firmware 2.30.03 (after i ran this tool), version 2.2.1 (5H11). No luck, still locked.

    for the record, when i run at+xgendata, i get

    "BOOTLOADER_VERSION:5.8_M3S2",1,0"

    not sure if this help, or if I'm doing something blatantly wrong.

  9. #67
    Did u try it? did it work? thanx

  10. #68
    i eeep getting permisssion denied and the octal is 0755

    hy is this

  11. #69
    TatooJack's instructions worked flawlessly. YellowSn0w unlocked now

    thanks guys for the great tools and tutorials

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    tattoojack (04-15-2009)

  13. #70
    guys i flowed tatto inst but i get a 5.09 boot loader

    what the hell

    why did i get this and some are on other bootloader

    i only upgraded to 2.2.1

    plz help

    everything is going fine with bootloader 5.09

    everything ok

    execpt the part of getting epl version

    it says timeout

    and just retires and nothing

    someone help plz
    Last edited by thebomber; 04-15-2009 at 08:36 AM. Reason: Automerged Doublepost

  14. #71
    okay tattoo jack just got his tutorial in the main post

    (with acknowledgment of course )

    Quote Originally Posted by thebomber View Post
    guys i flowed tatto inst but i get a 5.09 boot loader

    what the hell

    why did i get this and some are on other bootloader

    i only upgraded to 2.2.1

    plz help

    everything is going fine with bootloader 5.09

    everything ok

    execpt the part of getting epl version

    it says timeout

    and just retires and nothing

    someone help plz
    you cant just he-man it... no matter what you do it doesnt work on 5.9 bootloader
    Last edited by JStraitiff; 04-15-2009 at 09:19 AM. Reason: Automerged Doublepost

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    tattoojack (04-15-2009)

  16. #72

  17. #73
    yep. I have 02.28.00 over here. I didnt have any luck usinng the original method, but tattoo jacks works fine.

    what i think it is(looking at the original log of the first method) is it says it doesnt think the .eep is correct(maybe currupt during transit)

  18. #74
    very possible... either way it doesnt really matter for now since there is one functional

    ill talk to pH and see what he thinks

  19. #75
    Livin the iPhone Life Poseidon79's Avatar
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    OMG!! This is the most confusing thread with the most misinformation and improper use of iPhone terminology I have seen in a long time. For those of you who would like a much more concise guide please go to the one I wrote yesterday.

    http://www.modmyi.com/forums/general...ml#post3877511

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  21. #76
    Livin the iPhone Life Poseidon79's Avatar
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    Quote Originally Posted by wujek21 View Post
    dont showme this files in my iphone
    What does that even mean?! UGH!

    *Post scramble*

  22. #77
    Default dont work for me
    dont showme this files in my iphone

  23. #78
    Default dont work for me
    i copy phasebandowngrader to my iphone 3g. i run mobile terminal i type "cd/Applications/phasebandowngrader/" and show me there is no such file or directory

  24. #79

  25. #80
    i did as instructed and found out that my baseband bootloader version is ICE2.6.02 so it will not work with this method right ??

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