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  1. #1


    Member Since
    Jul 28, 2011
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    iMac, Macbook Pro, Apple TV, iPhone 4, iPad 2
    My iPhone 3Gs cannot detect my simcard after installing iOS 5.
    After updating my iTunes to iTunes 10, I downloaded the iOS 5 software and installed it on my iPhone 3Gs. After restarting, my iPhone 3Gs no longer had a signal so my iPhone could not be activated. It said "No Service" where the signal bar's supposed to be and my iTunes said my iPhone had "no simcard" even if there was. I tried using my simcard on another phone and it had a signal. Then I tried using another working simcard on my iPhone 3Gs and it didn't have a signal. So I conclude that the problem is in my iPhone 3Gs, not in the simcard, and it happened sometime during the installation of iOS 5.

    I heard the same thing happened to another iPhone 3Gs. Can anyone help?

  2. #2

    Jaygray's Avatar
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    Was the phone jailbroken & unlocked before you updated it?

  3. #3


    Member Since
    Sep 22, 2010
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    I had that when upgrading my Ipad 1 to 4.3.5.

    Asked in store and they said it can sometimes happen but to take the sim card out, blow on it and replace it.

    I did this and its working absolutely fine but at the worst your Service Provider should be able to replace the sim card.

  4. #4


    Member Since
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    Quote Originally Posted by Jaygray View Post
    Was the phone jailbroken & unlocked before you updated it?
    At first I thought it wasn't but now that I come to think of it, it could have been jailbroken. Does it make a difference if it was?

  5. #5


    Member Since
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    Quote Originally Posted by clive12 View Post
    I had that when upgrading my Ipad 1 to 4.3.5.

    Asked in store and they said it can sometimes happen but to take the sim card out, blow on it and replace it.

    I did this and its working absolutely fine but at the worst your Service Provider should be able to replace the sim card.
    Actually I tried using my simcard on another phone and it worked, and I tried using another working simcard on my iPhone 3Gs and it didn't work, so something must have happened to the phone during the installation of iOS 5.

    I also tried reinstalling iOS 5 twice. Same result.

  6. #6

    mrplow's Avatar
    Member Since
    Oct 01, 2007
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    27" iMac i7 (2011) 10.11, Mac Mini i5 (2014), iPhone6s, Apple Watch, iPad Pro 9.7, AppleTV (4)
    Did you do the iOS5 download within iTunes or did you get it from somewhere else?
    Not been around these parts for a while. Trying to change that . .

    Please use the reputation system if you think you've been helped - bottom left of this post

  7. #7

    Jaygray's Avatar
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    Quote Originally Posted by tompam View Post
    At first I thought it wasn't but now that I come to think of it, it could have been jailbroken. Does it make a difference if it was?
    If it was jailbroken & software unlocked, then you lost the unlock when you updated back to the factory Apple firmware.

    Are you in the US? Using a carrier other than AT&T?

  8. #8


    Member Since
    Oct 18, 2011
    Posts
    1
    Me too
    Same thing has happened to me.

    I updated to the iOS5, then I hooked up my NON-jailbroken 3GS. After "updating" everything this message appears:

    The SIM card inserted in this iPhone does not appear to be supported.

    I took my phone to my carrier, AT&T, and they cleaned the SIM card, didnt work. They replaced the SIM card, it didn't work. Tried to restore my phone, didn't work.

    Any advice?

  9. #9


    Member Since
    Jul 28, 2011
    Posts
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    Specs:
    iMac, Macbook Pro, Apple TV, iPhone 4, iPad 2
    This is the exact same thing that happened to my 3Gs.


    Quote Originally Posted by dandtnavarro View Post
    Same thing has happened to me.

    I updated to the iOS5, then I hooked up my NON-jailbroken 3GS. After "updating" everything this message appears:

    The SIM card inserted in this iPhone does not appear to be supported.

    I took my phone to my carrier, AT&T, and they cleaned the SIM card, didnt work. They replaced the SIM card, it didn't work. Tried to restore my phone, didn't work.

    Any advice?

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