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Thread: Downgrade 3G Baseband from 2.30 to 2.28

  1. #41
    Green Apple
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    but how can i ssh into my phone if it's not jailbroken with open ssh installed?

  2. #42
    Quote Originally Posted by buttrr76 View Post
    but how can i ssh into my phone if it's not jailbroken with open ssh installed?
    You can't so you should jailbreak?

  3. #43
    so this doesnt work on 2.30.3 but it does on 2.30

  4. #44
    Green Apple
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    how can i jailbreak it if i have baseband 2.30.03

  5. #45
    Quote Originally Posted by thatruth132 View Post
    so this doesnt work on 2.30.3 but it does on 2.30
    2.3 is a os update

    2.30.03 is a modem(baseband) firmware

  6. #46
    Quote Originally Posted by byransays View Post
    2.3 is a os update

    2.30.03 is a modem(baseband) firmware
    we know that, 2.30 is a modem firmware.... "whats a jailbreak"
    who said anything about 2.3

    also check the 1st post its there "only works for 2.30 and bootloader 2.8"
    Last edited by thatruth132; 04-14-2009 at 09:36 PM. Reason: Automerged Doublepost

  7. #47
    Quote Originally Posted by thatruth132 View Post
    we know that, 2.30 is a modem firmware.... "whats a jailbreak"
    who said anything about 2.3
    what?.



    anyway, does anyone have any more information on getting this downgrade to function properly, i have the correct boot loader and it runs allright, says to reboot my phone, when i do i still have 2.30.03

  8. #48
    Quote Originally Posted by byransays View Post
    what?.



    anyway, does anyone have any more information on getting this downgrade to function properly, i have the correct boot loader and it runs allright, says to reboot my phone, when i do i still have 2.30.03
    also check the 1st post its there "only works for 2.30 and bootloader 2.8"

    so what i am saying some things not right if firmware 2.2 has 2.30.00 and 2.2.1 has 2.30.03 what use does this have
    Last edited by thatruth132; 04-14-2009 at 09:44 PM. Reason: Automerged Doublepost

  9. #49
    ahh, back when this was announced on xsellize it was announced 5.8 i didnt think it changed THAT much

  10. #50
    For those of you wanting to find out what your BootLoader version is perform the following...

    From the commandline execute the following...

    Code:
    launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist
    Then make sure you have uploaded the phasebandowngrader files to the /Applications/phasebandowngrader folder. Now execute the following command.

    Code:
    chmod 755 -R /Applications/phasebandowngrader
    Now execute
    Code:
    /Applications/phasebandowngrader/./BBUpdaterExtreme queryversion
    Then you need to look for the following...


    After that you will either need to REBOOT your phone or execute the following command so that you can re-enable CommCenter
    Code:
    launchctl load /System/Library/LaunchDaemons/com.apple.CommCenter.plist

  11. The Following 2 Users Say Thank You to CrooKid For This Useful Post:

    chi_towner1 (04-14-2009), thatruth132 (04-14-2009)

  12. #51
    im looking into it now

    Quote Originally Posted by CrooKid View Post
    For those of you wanting to find out what your BootLoader version is perform the following...

    From the commandline execute the following...

    Code:
    launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist
    Then make sure you have uploaded the phasebandowngrader files to the /Applications/phasebandowngrader folder. Now execute the following command.

    Code:
    chmod 755 -R /Applications/phasebandowngrader
    Now execute
    Code:
    /Applications/phasebandowngrader/./BBUpdaterExtreme queryversion
    Then you need to look for the following...


    After that you will either need to REBOOT your phone or execute the following command so that you can re-enable CommCenter
    Code:
    launchctl load /System/Library/LaunchDaemons/com.apple.CommCenter.plist
    ok what firmware and modem firmware does this work for
    Last edited by thatruth132; 04-14-2009 at 09:50 PM. Reason: Automerged Doublepost

  13. #52
    now really, is this for bootloader 5.8 or 2.8?

    check this link, it says exploit found in 5.8

    READ

  14. #53
    Quote Originally Posted by thatruth132 View Post
    im looking into it now



    ok what firmware and modem firmware does this work for
    It doesn't matter as long as your on iPhone3G I would presume.

  15. #54
    OK this is pissing me off....The first message I got in mobile terminal said "access denied"

    now it tells me the file or directory doesn't exists!!

    what is the deal ::Jerry Seinfeld voice::

  16. #55
    Quote Originally Posted by him121213 View Post
    ^^ umm when the 3G came out we were only on 2.0

    I'm talking about bootloaders, why are you talking about firmware versions? My 3G came with the 5.09 bootloader and it was only a couple weeks old at purchase.

  17. #56
    When i do the bootloader check it says im running 5.8.

    I run the application, and it runs, and says success,I should reboot the device and i should be at 2.28, however when i reboot the device and go to about, it still says 2.30.03.

    Again I'm currently on bootloader 5.8 (which the app says I MUST be on for it to work)

    any suggestions?

  18. #57
    okay i went away for an hour and this is what i return to... who'd a thought

    1st thing id like to point out is that 2.30.03 is the bb that this works for... there is no such thing as 2.30.00

    2nd thing is i would like those of you who have had success but cant see the bb change to install yellowsn0w and see if it will work, idk y but i just want you to test it.

    3rd who ever it was that kept asking about 2.30 shut up!! your question has been answered in a previous post and in the beginning of this one

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  20. #58
    My iPhone is a Part of Me
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    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. Cpatcher). 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 Cpatcher

    "Cpatcher" 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


    edit #2:
    wow, really?
    only one thanks?
    i mean, come on!
    i got credited on the front page for cryin out loud!
    just one measly thanks?

    no offense jag0

    edit #3:
    lmao
    thanks guys, you rock!

    Last edited by tattoojack; 04-16-2009 at 10:59 AM.

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  22. #59
    ^^^ long week is rite

    im almost sorry i spilled this one

    thats okay im confident ill break 2300 if this keeps up
    Last edited by JStraitiff; 04-14-2009 at 11:29 PM.

  23. #60
    What's Jailbreak?
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    It won't execute for me. I get the following error:

    -sh: ./phasebandowngrader: Permission denied

    Any ideas?

    EDIT: Found it! Go into the folder and change Octal to 0755.
    Last edited by bbswany; 04-15-2009 at 12:48 AM.

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