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  1. #1

    Member Since
    Jan 10, 2012
    iPhone 4 no longer a phone!
    My wife's iPhone 4 has stopped working as a phone, everything else works fine. It keeps giving a "simcard error" message. She has gone as far as doing a factory reset but that did not solve the issue!
    Any ideas please?

  2. #2

    MBP17•David's Avatar
    Member Since
    Feb 04, 2014
    Great Britain
    MBP17 8GB/1.9TB 2xSSDs Sierra • MBA11 4/128GB • TC 2TB • TV3 • iPh6 128GB • iPadPro12
    Couple of things you might want to check, basically eliminating one unknown component at a time:

    • Have you confirmed with the network that the card has not been de-activated, expired, etc?
    • Does the SIM card work in any other phone?
    • Have you tried a different SIM card in the same iPhone?
    • Was the iPhone unlocked, and if yes - was it by the network and/or Apple, or by someone else?
    • If it was unlocked, and not by Apple, have you updated the iOS recently?

    That's besides a few simple/obvious ones, like:

    • Was there a liquid spillage?
    • Can you still eject the SIM card holder from the phone?
    • Has the phone been dropped?
    • Try to remove the SIM card, clean & reinsert
    • Set cellular provider to automatic, then to manual, making sure the correct network is selected, then back to auto
    • What do you hear when you try to call the SIM number?

  3. #3

    rabbitjetta's Avatar
    Member Since
    Nov 08, 2010
    Main-11" Air, iPhone 6+, iPad Mini 3, Hi-Fi Extras- Too many to count
    Try removing and reinstalling the sim card. I have had that happen a few times with my 5C and it fixed it.

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