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Thread: PC & Mac Guide - Downgrade from 2.0 to 1.1.4

  1. #1
    Livin the iPhone Life Poseidon79's Avatar
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    Default PC & Mac Guide - Downgrade from 2.0 to 1.1.4
    Before we begin please budget about 45mins of your time to get this done.

    *This is only for 1st Generation iPhones that have been upgraded... not for 3G iPhones*

    1. Download iTunes 7.5 from here: Direct Download iTunes 7.5 to Activate iPhone Anywhere Internationally My Digital Life
    2. Uninstall your current version of iTunes and reboot your PC.
    3. Go to My Documents > My Music > iTunes and delete the file called "iTunes Library.itl"
    4. Install iTunes 7.5

    Note for OSX users:
    If you are on OSX and want to attempt to downgrade your iTunes, you can try these steps:

    Load up Terminal and type the following:
    killall iTunesHelper
    sudo -s
    rm -r /Applications/iTunes.app
    rm -r /Library/Receipts/iTunesX.pkg
    rm ~/Library/Preferences/com.apple.iTunes*
    rm -r /Applications/iTunes.app
    rm -r /Library/Receipts/iTunesX.pkg
    rm ~/Library/Preferences/com.apple.iTunes*
    rm -r /System/Library/PrivateFrameworks/MobileDevice.framework


    5. Download the 1.1.4 restore file from the here http://www.modmyi.com/forums/downloa...o=file&id=2231 if you don't already have it.
    6. Put your phone into DFU mode using the following steps
    a. Plug your phone into iTunes (ignore the message that pops up)
    b. Power the phone OFF
    c. Hold power and home for EXACTLY 10 seconds
    d. Release power (continue to hold home)
    e. iTunes will recognize iphone in restore mode (you can let go of home now)
    7. Hold shift and click Restore - select the 1.1.4 firmware file you downloaded
    8. After it's done restoring you will get error 1015 and the phone should be in recovery mode (iTunes logo with cable)
    9. Important! Hold shift and click Restore and select the 1.1.4 firmware file and RESTORE AGAIN.
    10. After it's done open iLiberty "other tools" tab and click "jump out of recovery mode". (note - if you didn't restore TWICE as instructed above the phone won't jump out of recovery mode)
    Note: On a Mac you can use Independence to kick out of recovery mode. http://code.google.com/p/independence/downloads/list

    OK, you now have a phone with 1.1.4 Firmware and the 4.05.04 baseband. Now we have to downgrade the baseband

    11. Download KiPhone
    *Unzip all files into a folder before you run the program or it will fail*
    12. Run KiPhone with Debug Boot and iErase options checked. (Leave the box for downgrade UNCHECKED)
    13. Plug your phone into iTunes and shift+click restore to 1.1.4 AGAIN. This will write the correct 4.04.05 baseband to you phone. (You may have to put your phone into recovery mode manually for iTunes to let you restore - hold power and home until the phone reboots - continue to hold until you see the iTunes logo)
    14. Your phone should now be factory 1.1.4 with the matching baseband - all you have left is to jailbreak/unlock with you method of choice.
    Last edited by Poseidon79; 07-28-2008 at 09:40 PM.

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  3. #2
    i followed those steps yesterday and got it to down grade so my iPhone is working 100%. its been a day now with no problem. Also the key to this is taking your time.
    Code:

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  5. #3
    finally someone made a guide for noobs to understand lol. hopefully people will actually read this and not flip out when they do something wrong. good job

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  7. #4
    K when I open KiPhone, there are three options that can be checked. The first one is Downgrade baseband. Does that one need to be checked too? Or is it only debug boot and ierase

  8. #5
    Quote Originally Posted by Fear1508 View Post
    K when I open KiPhone, there are three options that can be checked. The first one is Downgrade baseband. Does that one need to be checked too? Or is it only debug boot and ierase
    check downgrade and debug..
    Code:

  9. #6
    Livin the iPhone Life Poseidon79's Avatar
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    Incorrect Sir... you are ERASING your baseband, now downgrading it. Please follow my guidelines EXACTLY.

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  11. #7
    iPhone? More like MyPhone
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    Where can I find "iLiberty" ? Thank you ahead of time.
    "Win or lose, I promise you violence"

    Wanderlei Silva

  12. #8
    Default iTunes asking for a correct sim card :(
    Hi, I followed your steps exactly up until #13 "13. Plug your phone into iTunes and shift+click restore to 1.1.4 AGAIN. This will write the correct 4.04.05 baseband to you phone." When I plug the iPhone into the iTunes, the iTunes is asking for a correct SIM card, AT&T that is. I'm a tMobile customer and I have tossed away the AT&T sim that came w/iPhone. Is there a way around it? Thank you!

    I got it here:
    iLiberty+ | George Zhu's BLOG
    Last edited by avdosha; 07-16-2008 at 07:59 AM. Reason: Automerged Doublepost

  13. #9
    i followed every step my phone when back to normal but it has no reception & it says it needs repair i cannot make or recieve calls... help..

  14. #10
    Livin the iPhone Life Poseidon79's Avatar
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    Quote Originally Posted by infamous12550 View Post
    Where can I find "iLiberty" ? Thank you ahead of time.
    I Liberty can be found at theiphoneproject

    Quote Originally Posted by avdosha View Post
    Hi, I followed your steps exactly up until #13 "13. Plug your phone into iTunes and shift+click restore to 1.1.4 AGAIN. This will write the correct 4.04.05 baseband to you phone." When I plug the iPhone into the iTunes, the iTunes is asking for a correct SIM card, AT&T that is. I'm a tMobile customer and I have tossed away the AT&T sim that came w/iPhone. Is there a way around it? Thank you!
    Just put the phone into recovery mode by holding power and home until the phone reboots and shows the iTunes logo... then hit shift+click restore. If you are on t-mobile you shouldn't have upgraded to 2.0 in the first place since there is no unlock released yet

    Quote Originally Posted by steffienator View Post
    i followed every step my phone when back to normal but it has no reception & it says it needs repair i cannot make or recieve calls... help..
    If you're at the 1.1.4 firmware I suggest doing a DFU restore to 1.1.4.
    Last edited by Poseidon79; 07-16-2008 at 09:16 AM. Reason: Automerged Doublepost

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  16. #11
    Quote Originally Posted by Poseidon79 View Post
    [COLOR="DarkOrange"][B]

    Just put the phone into recovery mode by holding power and home until the phone reboots and shows the iTunes logo... then hit shift+click restore. If you are on t-mobile you shouldn't have upgraded to 2.0 in the first place since there is no unlock released yet
    Thank you sir! I will try that tonight, and I also found an At&t sim card...
    I don't know what got into me in a first place, I still dont' understand why I did upgrade to 2.0... I was probably possesed by Steve Jobs

  17. #12
    Works i hav an ipod touch and i jaust did the first part w/o the KiPhone

  18. #13
    iPhone? More like MyPhone GHOSTYAIRO's Avatar
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    Thanks for the Guide Poseidon.
    I think for Mac is the same procedure right?
    αGoD HaS THe⌃oF My LiFe aND i DoN'T WaNNa⎋*Ⓘ♡Ⓜⓨⓘⓗⓞⓝⓔ

  19. #14
    I follow your steps. Howver, when I get into step 6, at e. you said itunes will recognize iphone in restore mode. But I cannot get the restore mode and even I click the SHIFT on the key board, still no action. When I did wrong? HELP!!!!!!!!!!!!!!!!!!!

  20. #15
    all right, I followed everything religiously and it still didn't work. The last step 13, I put the phone into DFU mode and then restored in itunes - got a 1015 error.
    When I jailbreak it, still no tmobile availalbe what am I doing wrong?

  21. #16
    Livin the iPhone Life Poseidon79's Avatar
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    Quote Originally Posted by avdosha View Post
    all right, I followed everything religiously and it still didn't work. The last step 13, I put the phone into DFU mode and then restored in itunes - got a 1015 error.
    When I jailbreak it, still no tmobile availalbe what am I doing wrong?
    Step 13 said nothing about DFU mode. Check your baseband. Settings... General.. About... Modem Firmware. If it's still at 4.05.04 then KiPhone didn't work.... Report Back

    Quote Originally Posted by jmt888 View Post
    I follow your steps. Howver, when I get into step 6, at e. you said itunes will recognize iphone in restore mode. But I cannot get the restore mode and even I click the SHIFT on the key board, still no action. When I did wrong? HELP!!!!!!!!!!!!!!!!!!!
    You must follow these steps exactly. this is DFU mode for 2.0 only so confirm that you're on 2.0 I have tried this method many times and it's always worked for me.
    Last edited by Poseidon79; 07-16-2008 at 08:05 PM. Reason: Automerged Doublepost

  22. #17
    think i'm in the same boat as avdosha. got to the last restore and i get error 1015 again. trying to restore one more time..... please please please...... (i put it into restore mode. not DFU).

    Do i just go ahead and jailbreak the phone with i liberty to check the software?

    I just checked my firmware. it's the .04.05.04_G firmware.

    any ideas? do i keep trying KI phone?
    Last edited by cartman13; 07-16-2008 at 09:06 PM. Reason: Automerged Doublepost

  23. #18
    where do i download the 1.1.4 restore file

  24. #19
    Livin the iPhone Life Poseidon79's Avatar
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    Older version of Kiphone do NOT erase the 4.05.04 baseband. You MUST have this version for it to work. This is the exact link I used. KiPhone

  25. #20
    trying right now your link... damn... My modem version is 04.05.04G maybe I do have an old kiPhone...

    Ok, i downloaded a new kiphone and once it ran, the iphone had a message for me: repair needed. this phone cannot receive/make calls. am I doomed???

    10 minutes later - IT WORKS!!! I just needed a new kiPhone installed!!! YES! Thank you Poseidon!
    What I did was installed new kiPhone, iErase and downgraded and debuged. Then restored in iTunes, then I got that message about repair needed. Indeed, all the info about the bluetooth/modem etc was erased! Then I restored again in iTUnes, and then jailbroke by ziPhone. That's all folks!
    Last edited by avdosha; 07-16-2008 at 11:13 PM. Reason: Automerged Doublepost

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