iOS 4.0 Help! iPhone 3g, 4.0.2 call failed/call forwarding

Discussion in 'iOS Jailbreak & Cydia' started by kaos_NW, Aug 21, 2010.

  1. kaos_NW

    kaos_NW New Member

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    Hi everyone, I have just brought a iPhone that is on 4.0.1. I JB it and installed ultrasn0w to unlock it

    Now when I put my sim in the phone it shows full signal and displays T-Mobile in the top left corner but I cant make or recieve any calls at all! when I try and dial any number it almost instantly says 'call failed' beeps three times and displays a pop up saying call forwarding active, with a dismiss button

    I also cannot send text messages, But I can use 3g without problems :-7

    I have read load and have tried changing the time/date settings, show caller ID, disabling flight mode/3g etc and nothing seems to work!

    It was a fresh install of 4.0.1, all I have done is jailbreak it and unlock it. Does it need activating or something???

    Please can someone help me!
  2. Oliver Barker

    Oliver Barker New Member

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    Have you actually checked the network username and passwords for that carrier?...
  3. kaos_NW

    kaos_NW New Member

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    username and password? sorry im a noob! do you mean for 3g settings? as the 3g is working as it should.
  4. omokas

    omokas Member

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    To disable the "Call Forwarding Active" (which appears when you call) , call ##002# and then press Dismiss. It won't show up again

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  5. kaos_NW

    kaos_NW New Member

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    cheers mate ive tried that loads but it doesnt work on mine! it says Error performing request, Setting deactivation failed
  6. mrez

    mrez Member

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    with T-Mobile you need to disable 3G or it wont work, try that
  7. kaos_NW

    kaos_NW New Member

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    Damn I just tried it but the same problem occurred! I guess the phones blocked and cant call/send the requests out on a UK network!

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