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  • How to Enable Tethering in iPhone OS 3.0


    Tethering has always been one of the 'most-wanted' features for the iPhone. Though it was felt that AT&T's monopoly over iPhone in the US has prevented it so far, but according to Apple's Scott Forstall, Apple added the feature in the 3.0 OS. Still, it's kept "disabled" in the 3.0 beta versions distributed by them so far as they are yet to co-ordinate it with the mobile carriers.

    Unknowingly, Steven Troughton Smith was tweaking the APN in carrier.bundle and suddenly found that he somehow enabled the Tethering preference! From the screenshots provided, it seems that there will be two modes- USB and Bluetooth tethering. As he's not yet clear how he activated, so there are no details from him on how to do that right now (unless he or someone else works it out).

    Quote Originally Posted by stroughtonsmith
    To all: I have no idea how I did it. Sorry! I was hacking around with APNs in the Carrier.bundle itcc file
    Luckily, someone found this out. You may enable it if you have access to developer's beta by following steps below.

    Step 1: Check if you own a 3G iPhone. If you're on EDGE (as I am): sorry. Tethering does not seem to work with EDGE phones.

    Step 2: Check to see if AT&T is your carrier. If it is: sorry. AT&T will not let you tether.

    Step 3: Navigate to ~/Library/iTunes/iPhone Carrier Support. Notice the spaces in that last folder name! If you're at the command line, use backslashes to escape the spaces, i.e. cd ~/Library/iTunes/iPhone Carrier Support. You will find a file with an ipcc extension. Copy that file: e.g. cp foo.ipcc foo.ipcc.original. This creates a backup for when you mess up.

    Step 4: rename the ipcc extension to zip. For me that was ATT_US.ipcc renamed to ATT_US.zip. (Did I mention how I'm on a 1st Gen iPhone with AT&T?). Unzip it. This creates a new folder called Payload.

    Step 5: Navigate into Payload and then into the folder under that. Mine was called ATT_US.bundle. Yours will differ. Inside that folder you will find three files that you will edit: Info.plist, version.plist, and carrier.plist. Open all three in the Property List Editor that comes with the dev tools on a Mac.

    Step 6: In Info.plist, change the CFBundleVersion to 5.0. Save.

    Step 7: In the version.plist, change the CFBundleVersion to 5.0. Save.

    Step 8: In carrier.plist do the following and then save:
    (a) Add a new dictionary to the apns array:
    apn = internet
    password = password
    username = iphone
    (b) In the wap dictionary (mine is wap.cingular, sts's was wap.dol.ie), add a new pair. Do not edit the password or username:
    type-mask = (NUMBER) -2
    (c) Add a new pair at the top level dictionary of the carrier.plist file. (We're not sure this is strictly speaking necessary but go ahead and do it.):
    AllowEDGEEditing = (BOOLEAN) YES

    Step 9: Zip up the Payload folder in which you just made your edits. Rename it to the same name as the original ipcc file. (For me that was ATT_US.ipcc).

    Step 10: Connect your iPhone to iTunes.

    Step 11: In the Summary tab, option-click "Check for Update". Navigate to your ipcc file, select it. It takes no more than a second or two to update.

    Step 12: Reboot your iPhone.

    Step 13: In prefs (on the phone) navigate to Settings > General > Network.

    Step 14: Let me know how this worked for you.

    HOW TO FIND A CARRIER IPCC FILE:

    curl -s -L http://phobos.apple.com/version | grep -i carrier
    Though, it is not very clear yet that when Apple will finally release 3.0, will Tethering be added but if Apple gets its say, we will see this wonderful feature added soon!

    already edited file for AT&T http://thejakemarsh.com/ATT_US.ipcc.zip

    [Steven Troughton Smith Twitter and GistHub]

    UPDATE: For T-Mobile Germany instructions, check FutureTap blog.
    This article was originally published in forum thread: How to Enable Tethering in iPhone OS 3.0 started by sayam View original post