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  • Downgrade 3G Baseband from 2.30 to 2.28

    For those who have wanted to unlock their iPhone 3G but have updated to the 2.30 baseband, hope is now here. Thanks to the work of dev pH, a tool has been created to downgrade your baseband, and allow a unlock to occur once again.

    only works for baseband 2.30 and bootloader 5.8

    (im sorry if the original post didnt clarify enough because doerrfan decided to reword things when he moved it )

    to check your bootloader version, visit:
    Baseband Commands - The iPhone Wiki

    (run at+xgendata in minicom)

    To run the pHaseBanDowngrader, connect via SSH to your iPhone and copy the downloaded folder (phasebandowngrader) into the folder "/Applications" on your iPhone.
    Note: The folder MUST named phasebandowngrader with lowercase letters!

    To run it, open MobileTerminal and type "login". The user is "root" and password is "alpine" by default. Then type: "cd / Applications/phasebandowngrader/", then, to run the downgrader, type "./phasebandowngrader"
    METHOD 2 (found by tattoo Jack)
    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!
    simplified version of method 2 (Koolman0)
    For those of you that are still having problems This Should be more simple
    .................................................. .................................................. .........
    Download:
    1. Make a folder on your desktop
    2. Extract All to the same folder (All Three Files)
    3. In the Folder there should be a Shortcut file called "Prompt" open it
    4. Now type in:
      bspatch ICE2_02.28.00.fls patchedbaseband.fls downgrade.patch
    5. Now Make a New Folder in that Directory Call it "new"
    6. Three Files need to be copied To the "new" folder
      • patchedbaseband.fls
      • ICE2_02.28.00.eep
      • BBUpdaterExtreme
    7. Rename patchedbaseband.fls to ICE2_02.28.00.fls
    8. SSH into your iPhone
    9. Copy the Three files (patchedbaseband.fls, ICE2_02.28.00.eep, BBUpdaterExtreme) to /private/var/root
    10. Now go to MobileTerminal (on your iphone, This app can be Downloaded from Cydia or installer)
    11. Type in the Following Commands *****Case Matters*****
      1. Type in: su
      2. Type in the password: alpine
      3. Type in: cd /var/root
      4. Type in: chmod 755 BBUpdaterExtreme
      5. Type in: launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist
      6. Type in: ./BBUpdaterExtreme queryversion
    12. NOTE:
      • if you see a 5.8 continue
      • if you see a 5.9 STOP this will not work for you Sorry
    13. Continue if 5.8
      1. Type in: su
      2. Type in the password: alpine
      3. Type in: cd /var/root
      4. Type in: chmod 755 BBUpdaterExtreme
      5. Type in: launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist
      6. Type in: Type in: ./BBUpdaterExtreme update -f ICE2_02.28.00.fls -e ICE2_02.28.00.eep
      7. Reboot Device
    14. Once the iPhone has restarted go to Settings> General> About> At the bottom should say 02.28.00 (then you jump up and down in JOY)
    15. Last But not Least Unlock
    P.S.
    Here are the three Files you will be creating
    so just copy these to you iphone (continue from Step 8 or 9)
    Three Files inside this RAR
    this tool has been tested by multiple people and WILL NOT brick your device. if you have bootloader version 5.9 it will not work. you can try but it will not work (still no risk of brick)

    use at your own risk, but there is really no risk of doing any damage to your device unless you do something absurd

    MMI Members Download

    Apple Forums & iPhone Forums, Mods, Hacks, News, Themes, Downloads, and more! | ModMyi.com - Downloads - phasebandowngrader

    External Mirror

    phasebandowngrader.zip
    This article was originally published in forum thread: Downgrade 3G Baseband from 2.30 to 2.28 started by JStraitiff View original post
    Comments 341 Comments
    1. ashannak's Avatar
      ashannak -
      Some freinds talled me that GEVEY TURBOSIM plus II can damage your iphone! any truth in that? Thanks
    1. confucious's Avatar
      confucious -
      Quote Originally Posted by ashannak View Post
      Some freinds talled me that GEVEY TURBOSIM plus II can damage your iphone! any truth in that? Thanks
      No. They aren't very good friends, are they?
    1. 3g.ip's Avatar
      3g.ip -
      ihave bootloader 5.9 or 5.09 i can be downgrade or not
    1. confucious's Avatar
      confucious -
      It is for 5.8 (5.08) ONLY
    1. carlos.michell's Avatar
      carlos.michell -
      Quote Originally Posted by him121213 View Post
      thank you so much for putting a stupid *** ******* kid's youtube video in my thread

      see previous rant on kids and their youtube videos

      if you need a video to figure out how to do something then u shouldnt be doing this
      What are you going to cry about it? Dont be mad because some 13 year old kid has a better method than, what you have here. You Had me sitting here for some hours trying to figure your CRAP. Just be happy there is a better method.
    1. RHMobileJake's Avatar
      RHMobileJake -
      Lol Carlos, the methods posted previous to your BBDowngrade for dummies vid worked just as well for most of the people who took the time to read them and follow their instructions.

      It's great that even though you couldn't fully understand the step by step written instructions posted someone was able to make this simple enough for you to do. And Him was right, if you really need a video from some 13 year old who could do something you couldn't I would be cautious in trying something that alters your phones firmware. But hey just be happy that you finally After hours of zero progress and thanks to the original method, were able to achieve what the rest of the community is enjoying.
    1. StealthBravo's Avatar
      StealthBravo -
      Quote Originally Posted by confucious View Post
      No. They aren't very good friends, are they?
      lmfao
    1. confucious's Avatar
      confucious -
      Quote Originally Posted by StealthBravo View Post
      lmfao
      If it made you laugh you could always thank me
    1. StealthBravo's Avatar
      StealthBravo -
      Quote Originally Posted by confucious View Post
      If it made you laugh you could always thank me
      rolmao
    1. confucious's Avatar
      confucious -
      Quote Originally Posted by StealthBravo View Post
      rolmao
    1. StealthBravo's Avatar
      StealthBravo -
      You could thank me for laughing at your jokes!
    1. confucious's Avatar
      confucious -
      Thanks given
    1. ztevenx's Avatar
      ztevenx -
      Quote Originally Posted by carlos.michell View Post
      Bump this!!!!!!! There is a waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaay easier method. Follow this link YouTube - 3G Baseband Downgrade 2.30 to 2.28. UNLOCK YOUR iPHONE 3G With YELLOWSn0w! (5.8 Bootloaders only). This guy is awesome.

      Bump this!!!!!!! There is a waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaay easier method. Follow this link . This guy is awesome.
      Thank you for linking this =)
    1. tattoojack's Avatar
      tattoojack -
      Quote Originally Posted by RHMobileJake View Post
      Hey everyone I just wanted to let all of you know that have 5.9 or higher bootloaders the way I got around it. Now keep in mind this isn't a sure thing but it will at least give you a 2nd shot at it if you have the 2.30.03 baseband and want a chance to downgrade.

      It was simple, I went to the apple store. Told them my battery was heating up when I used my itunes or any other program for more than 5 min. Since I was jailbroken I did a full restore before I went and without any Diagnostic info due to the restore they have to take your word for it on a battery issue.

      They swapped my 3G, new one was running 2.21 same as my last one but I was lucky and ended up with the 5.8 Bootloader. 5 min later I was on a 2.28.00 Baseband

      Yeah I was lucky but who knows how many will be, I mean since I was stuck anyway it never hurts to try right?
      but you gotta have at$t to do that, so how would that help us?

      Quote Originally Posted by confucious View Post
      If it made you laugh you could always thank me
      thats just sad and pathetic, and a complete waste of a post.
      beggin for thanks
      really?


      Quote Originally Posted by carlos.michell View Post
      What are you going to cry about it? Dont be mad because some 13 year old kid has a better method than, what you have here. You Had me sitting here for some hours trying to figure your CRAP. Just be happy there is a better method.
      so are you mad at him for being mad at you?
      or you're just mad at yourself because you had to have a kid figure it out, make a vid, upload it to youtube,
      all so YOU could understand it?

      wow

      you can always tell when people are bored.

      everyone is all lovey dovey when the exploits come out,
      soon as it dont work for everyone,
      the claws come out!

      lmao

      and if i make you laugh, you can thank me,
      or go f$#k yourself.
      i really don't give a s#$t
    1. Enigma85's Avatar
      Enigma85 -
      So what's the reasoning for it not working on bootloaders higher then 5.8??
    1. madrigal77's Avatar
      madrigal77 -
      Quote Originally Posted by Enigma85 View Post
      So what's the reasoning for it not working on bootloaders higher then 5.8??
      It's already been mentioned many times in this thread. Apple closed the exploit in 5.9 and up.
    1. paldiel's Avatar
      paldiel -
      Thank You, It worked! I'm back to 02.28.00

      Yellowsn0w is back in business.

      Again, thanks for all your work, a real genius.
    1. confucious's Avatar
      confucious -
      Quote Originally Posted by tattoojack View Post


      thats just sad and pathetic, and a complete waste of a post.
      beggin for thanks
      really?

      I couldn't care about thanks - but when someone has a request for thanks in his sig yet has never thanked anyone I feel it is my duty to try and get him to thank someone (even if, on this occasion, it was me).

      Lighten up
    1. wannabelean's Avatar
      wannabelean -
      ok how do I determine my bootloader if I have a locked, unjailbroken 2.2.1 Iphone?
    1. CaptainChaos's Avatar
      CaptainChaos -
      Heh I think someone should post this method drawn out in crayolas.

      You have to be jailbroken wannabelean.