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Discuss iOS 4.0 how to eneble APN Settings at the iOS 4.x (iPhone OS 4.x) - Hackint0sh.org; After i do a jailbreak on my 3GS, I usualy need to do some extra ...
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    Default iOS 4.0 how to eneble APN Settings

    After i do a jailbreak on my 3GS, I usualy need to do some extra to my phone. One of that is to enable APN Settings in General->Network settings form.

    This thing can make posibble by editing file "/System/Library/Carrier Bundles/(your bundle name)/carrier.plist". I just add a option with "AllowEDGEEditing" set to true.

    This method working ok on 3.1.2 and 3.1.3, but on iOS 4.0 it not working any more. I also discover that my MMS and internet on 3G not working after this.

    It look like that this file has protection from iOS 4 for editing. Olso I found that we have a "signature" section in "carrier.plist" file. I asume that this signature is resposible for this, and we need to recreate this "signiture" every time we edit file. At this moment I do not know how to recreate "signature" string (does any one?)

    ps. After I revert original file carrier.plist, my MMS and internet on 3G come back and work again.



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    Super Moderator Array Olethros's Avatar

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    Quote Originally Posted by beba View Post
    After i do a jailbreak on my 3GS, I usualy need to do some extra to my phone. One of that is to enable APN Settings in General->Network settings form.

    This thing can make posibble by editing file "/System/Library/Carrier Bundles/(your bundle name)/carrier.plist". I just add a option with "AllowEDGEEditing" set to true.

    This method working ok on 3.1.2 and 3.1.3, but on iOS 4.0 it not working any more. I also discover that my MMS and internet on 3G not working after this.

    It look like that this file has protection from iOS 4 for editing. Olso I found that we have a "signature" section in "carrier.plist" file. I asume that this signature is resposible for this, and we need to recreate this "signiture" every time we edit file. At this moment I do not know how to recreate "signature" string (does any one?)

    ps. After I revert original file carrier.plist, my MMS and internet on 3G come back and work again.
    Yes it is the signature that cause the problem. Not sure if there is a solution for this yet. Reportedly ultrasn0w 0.9.3 patches out this signature check - but that is not enough to allow tethering to be enabled. Might be enough to allow your edits to be accepted though.
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    Nop, same thing after unlock. It was ok for a moment, than I restart iPhone and problem return. It look like iOS 4 protect him self during boot proces, and ignore a edited file.

    Thanks Olethros
    Last edited by beba; 06-25-2010 at 10:07 AM.

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    Yet another move by Apple, pressed by AT&T interests. Now the whole carrier.plist has a signature and it seems that AllowEdgeEditing was removed from *all* (or almost all - I've checked several) operators. Now it seems that only Apple will be able to do it (at least that's the idea). This is the way to prevent injecting carrier.bundles with iTunes and modifying the APNs (and therefore bypassing some of the tethering billing controls - specially the one AT&T is using).

    ultrasn0w is modifying the signature check that was part of the 3.x series of firmware, that is the individual signatures for each APN. But if a single bit is changed in the carrier.plist, nothing will load and it will block "all" controllable features.

    Bottom line: until the proper patch / mod is found, the only hacking that can be done in the carrier settings is changing the logo. It will take a while, but eventually it will be discovered.

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    Here is the solution to get back your Edge or 3G Data Cellular:

    Step 1: Connect to the internet via WiFi

    Step 2: Go to http://www.unlockit.co.nz/ - in Safari

    Step 3: Select custom APN and choose your carrier

    Step 4: Click install for the custom APN and data should now work over 3G/Edge

    Works 100% for me.
    Last edited by Tobe; 06-29-2010 at 04:14 AM.


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    Quote Originally Posted by Tobe View Post
    Here is the solution to get back your Edge or 3G Data Cellular:

    Step 1: Connect to the internet via WiFi

    Step 2: Go to Unlockit - APN Changer for your iPhone - in Safari

    Step 3: Select custom APN and choose your carrier

    Step 4: Click install for the custom APN and data should now work over 3G/Edge

    Works 100% for me.
    That will only work on unofficial carriers. That will NOT work for AT&T.
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    Hi,

    Has anyone found any solution or workaround for this yet? I tried every possible thing. I removed the bundle name, then also my GPRS was working fine.. I just want to edit my APN. I also tried copying the complete folder of some other provider and renaming it to my provider, still no results..

    If any one know any workaround please let me know.


    Thanks
    Sam

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    Super Moderator Array Olethros's Avatar

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    Quote Originally Posted by nuclearsam View Post
    Hi,

    Has anyone found any solution or workaround for this yet? I tried every possible thing. I removed the bundle name, then also my GPRS was working fine.. I just want to edit my APN. I also tried copying the complete folder of some other provider and renaming it to my provider, still no results..

    If any one know any workaround please let me know.
    There is an existing thread that includes the correct commcenter patches for this problem. Search for the keyword wortel
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