The Impossible-To-Jailbreak iPhone

Discussion in 'Jailbreaks and iOS Hacks' started by Adrianus, Mar 25, 2009.

  1. Adrianus macrumors member

    Joined:
    Oct 17, 2008
    #1
    Ok guys here's the story from A-Z

    I just received a second hand iPhone 2G. It used to be jailbroken, but the owner accidentally updated to 2.2.1 and it is now screwed up.

    It doesn't have the original Sim card anymore. Which means whenever i connect it to iTunes i get a message along the lines of: 'the sim card inserted in this iphone does not appear to be supported'

    I thought it would be a case of just putting it into dfu mode, restoring by option-clicking and choosing an ipsw that i used for my previous iPhone (which contained the custom 2.2 FW i made with Pwnage Tool).

    However, every time i tried to restore i got error-21. After a lot of research i found out that you had to delete all traces of iTunes and re-instal it. (I also installed an old version, 7.7) (http://www.modmyi.com/forums/general/433201-problems-dfu-itunes-8-0-2-error-21-fw-2-2-a.html)

    I did this. No luck.

    I don't have the original Sim card, and the main problem is getting rid of the error-21.

    So please, help!
     
  2. Tokiopop macrumors 68000

    Tokiopop

    Joined:
    Dec 6, 2008
    Location:
    West Yorkshire, UK
    #2
    QuickPwn? :confused:

    Make sure you have the 2.2.1 iPhone 2G firmware on your computer though.
     
  3. Adrianus thread starter macrumors member

    Joined:
    Oct 17, 2008
    #3
    QuickPwn is no good... For some reason it doesn't detect the iPhone when i put it in.

    I was thinking that using a different computer might get past the error-21 problem. So tomorrow am gonna take the ipsw and iPhone and try it on the school Macs.
     
  4. Tokiopop macrumors 68000

    Tokiopop

    Joined:
    Dec 6, 2008
    Location:
    West Yorkshire, UK
    #4
    Okay, tell us how it goes.

    I wish my school would get some Macs... Or at least let me put Linux on my user account :( Stupid crappy school.
     
  5. benflick macrumors 68020

    benflick

    Joined:
    Jul 11, 2008
    Location:
    Cincinnati, Ohio
    #5
    The baseband was updated with the update to 2.2.1. That is why you couldn't restore to 2.2. You will need to create an ipsw for 2.2.1 in Pwnage Tool.
     
  6. megamanbnmaster macrumors 6502

    Joined:
    Jan 26, 2008
    #6
    If the iPhone is 2G, assuming thats edge, the baseband doesn't get updated. If it's 3G (2nd generation), then it did get updated.

    Either way, are you running this on a mac with 10.5.6 installed? That could be the reason why it wouldn't go to DFU mode.
    To fix it, you just need to buy a USB 2.0 powered up. (or edit your kext files, which i DONT recommend and it screwed up my laptop).
     
  7. intelplatoon macrumors member

    Joined:
    Feb 5, 2009
    #7
    Try plugging a USB hub into the port on your computer, and then plug the phone into that. try running it through the hub and it might work.......i was having the same problem, then i read this somewhere and it worked the first time......
     
  8. intelplatoon macrumors member

    Joined:
    Feb 5, 2009
    #8
    i forgot to mention that i got the same error code 21. .....let us know if that works
     
  9. intelplatoon macrumors member

    Joined:
    Feb 5, 2009
    #9
    MEGAMANBNMASTER-"Either way, are you running this on a mac with 10.5.6 installed? That could be the reason why it wouldn't go to DFU mode.
    To fix it, you just need to buy a USB 2.0 powered up."

    ^i should have read all the posts first i know........sry
    :confused:
     
  10. jmccullough108 macrumors 6502a

    jmccullough108

    Joined:
    Nov 2, 2008
    Location:
    St. Louis, MO
    #10
    Error code 21 means that you didn't go into DFU mode correctly.


    DFU Mode is a black screen

    Recovery mode is the USB to Itunes logo


    They are totally different in the jailbreak world.. It HAS to go into DFU mode.
     
  11. Adrianus thread starter macrumors member

    Joined:
    Oct 17, 2008
    #11
    Ok guys thanks for feedback.

    My attempt on the school computers didn't go too well. iTunes is blocked on all the student computers, so i went at break on the teacher's computer but had no luck there either.

    My friend also told me that changing USB ports and using a USB hub could work. So i will try that.

    How do you go into DFU mode correctly? I did what it said on most sites and i got the iTunes message on the phone, so i'm guessing i went into recovery mode instead?

    Thanks
     
  12. Tokiopop macrumors 68000

    Tokiopop

    Joined:
    Dec 6, 2008
    Location:
    West Yorkshire, UK
    #12
    They way I enter DFU mode is the following
    1. Turn the device off, and disconnect it.
    2. Push and hold the Home and Sleep/Wake buttons, as you plug the device into your computer
    3. Keep holding the Home and Sleep/Wake buttons for a further 10 seconds
    4. Release the Sleep/Wake button, but continue to hold the Home button for 10 more seconds
    The screen should be black, and the phone should be totally unresponsive. iTunes will say it has detected an iPod in recovery mode, and will prompt you to restore it.
     
  13. Adrianus thread starter macrumors member

    Joined:
    Oct 17, 2008
    #13
    Ok cool. I just got a message from my friend that he managed to fix it so it's all good. Am not sure what he did, so when i find out i'll post it in case anyone has had the same problem. Although my best guess is that it was just the computer....
     
  14. Adrianus thread starter macrumors member

    Joined:
    Oct 17, 2008
    #14
    Solution....

    Solution:

    Try a different computer. If you're getting errors on iTunes, chances are that simply using a different computer, or even a different USB drive, will work.
     
  15. Tokiopop macrumors 68000

    Tokiopop

    Joined:
    Dec 6, 2008
    Location:
    West Yorkshire, UK
    #15
    I got some errors restoring my iPhone to a Pwn'd Firmware. Swapped USB ports, did the trick :cool:
     

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