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Discuss 1.1.2 OOB idea / question at the iPhone "2G" (Rev. 1) - Hackint0sh.org; This was in error but here is how mine disappeared. Go to restore and start ...
  1. #11
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    This was in error but here is how mine disappeared. Go to restore and start the restore process to 1.02. Let it go a few seconds then pull the cable out. This is what I did and it made my baseband disappear. Then I restored again. It completed and was able to boot the phone etc. I used pacay to get into it, completed, but with no wifi or sound. I then checked in settings about and it wasn't there. I then used vt100 to put it on.


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    no way by testpoint?

  3. #13
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    I am still not sure about it. The problem is, the new bootloader does not allow you to access the baseband. You cannot erase it, say that you have done this somehow for example as you accidentally did, then you cannot flash a new one because again, the bootloader will not allow bbupdater to do this... I don't know, I am totally confused. I have been reading all these forums, tutorials, guides all the day and now I am almost at a position to ask "What is iPhone?"

    Quote Originally Posted by vansteffo View Post
    This was in error but here is how mine disappeared. Go to restore and start the restore process to 1.02. Let it go a few seconds then pull the cable out. This is what I did and it made my baseband disappear. Then I restored again. It completed and was able to boot the phone etc. I used pacay to get into it, completed, but with no wifi or sound. I then checked in settings about and it wasn't there. I then used vt100 to put it on.

  4. #14
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    I get what you're saying but....If during restore it "verifies" in some way the baseband/modem firmware that's on the phone and that process gets interrupted, what does it read? I'm believe that when that process gets interrupted it says there isn't one. Then the firmware overides to make the phone operational. Reasons on this being because it has done it to some phones already, based on numerous posts of "baseband missing". I'm not sure how the bootloader and baseband work together. If someone can elaborate?? I just think if that can be done with the baseband, than why not with the bootloader?

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    I don't know if this has been suggested before or even if I'm barking up the wrong tree. As far as I've gathered, the modem baseband is the software responsible for making calls, receiving them etc. The holy grail in a sense. Again, I don't know much of anything about this other than what you guys are posting so please forgive my ignorance.

    Anyhow, as I understand it, performing calls and sending sms and what not is done by communication with the baseband located at /dev/tty.baseband

    Now, I'm no unix-guru either, but if I remember correctly one of the fun things about unix is that "everything is a file". Sure, this is a special niche of unix, but still, let's play with the though of moving tty.baseband and replacing it with an older, cracked version. Obviously this would mean that any software expecting a 1.1.2 baseband would have to be downgraded.

    I have no iPhone readily available with which I could toy, and I'm sure it's a stupid idea anyhow. Just thought I'd put it out in the air and see what you geniuses think.


  6. #16
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    /dev/tty.baseband is an node file, with size=0bytes and its meaning only to allow software to communicate to hardware by pointing the OS to which "channel" to use. No use at all for what we need.

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    Oh, thanks for clearing that up! Silly me!

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    Quote Originally Posted by vansteffo View Post
    I get what you're saying but....If during restore it "verifies" in some way the baseband/modem firmware that's on the phone and that process gets interrupted, what does it read? I'm believe that when that process gets interrupted it says there isn't one. Then the firmware overides to make the phone operational. Reasons on this being because it has done it to some phones already, based on numerous posts of "baseband missing". I'm not sure how the bootloader and baseband work together. If someone can elaborate?? I just think if that can be done with the baseband, than why not with the bootloader?
    Well OK, but the thing I understand from your explanation is that the phone just "thinks" there is not a baseband if the process is interrupted, and starts up without the baseband information. But this does not mean that the baseband installed in the chip is gone, does it? So anyway we need to "reach" that chip to erase it - assume that it is really erased in this process- to write it. I believe that what you suggest is to erase the bootloader and reflash it. It has been suggested but was of no use. Because nobody could manage it. Can you please explain this missing baseband problem a little bit in detail?

    Because I myself had such a problem on the iphone of a friend of mine which was 1.0.2 OOTB. iEraser had hanged up during a baseband erasing process, I terminated it, and the phone started up with no baeband information, no WiFi, etc. But then as I restored the phone via iTunes, it got it reflashed.

    The point is, if the bbupdater reports no bootloader also, in the case of a no baseband situation, then this may sound interesting.

    By the way, I have to admit that I do not have detailed information about how these two are working together, the baseband and the bootloader. So if I am telling silly things please excuse me all...
    Last edited by Omaar; 12-10-2007 at 01:39 AM.

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    OK good. When I had my mishap it reported nothing. I restored 1.02 and still got nothing. When I checked, I assumed it may have just been hidden or not reporting, due to corruption, but bbupdater reporting nothing as well. Only until I manually added the baseband files did it actually appear on the phone.

    In your situation, when you restored the phone via Itunes, did you try to restore firmware 1.02? If you had done that, is what I want to see what would've happened.
    Last edited by vansteffo; 12-10-2007 at 03:54 AM.

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    Quote Originally Posted by vansteffo View Post
    OK good. When I had my mishap it reported nothing. I restored 1.02 and still got nothing. When I checked, I assumed it may have just been hidden or not reporting, due to corruption, but bbupdater reporting nothing as well. Only until I manually added the baseband files did it actually appear on the phone.

    In your situation, when you restored the phone via Itunes, did you try to restore firmware 1.02? If you had done that, is what I want to see what would've happened.
    Yeah exactly. I used the 1.0.2 firmware file to restore and it restored everything correctly.


 

 
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