No SIM Issue On iPhone 4/4s!

Discussion in 'iPhone' started by Applefan, Aug 16, 2016.

  1. Applefan

    Applefan Active Member
    Senior Member Recognized Member

    Jul 16, 2016
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    Most issues on the iPhone 4, iPhone 4s and all other iPhone models you can fix yourself. Usually, glitches with the device are connected to Settings, and certain Options, and with several clicks, everything will work just fine. If you see the message on your iPhone, which says: No SIM, with some simple tricks, you can make it work again. In this article, you can find 5 ways to fix no SIM issue on iPhone 4/4s, and once you read it, get to work, and solve the problem.

    See also: 5 Ways To Fix Frozen Camera App On IPhone 4/4s

    5 ways to fix no SIM issue on iPhone 4/4s

    Solution No.1: Turn Airplane mode on/off

    Go to Settings, and turn on/off Airplane mode a couple of times. In most cases, this step is all you need, and No SIM issue will be gone.

    Solution No.2: iOS

    If you don’t have the latest version of iOS, available for your iPhone model, No SIM issue may appear. Download and install the latest version of iOS for your device.

    Solution No.3: Reset Network Settings

    Reset Network Settings is one of the 5 ways to fix no SIM issue on iPhone 4/4s, and with several clicks, you will see if this will work for you. Choose Settings from your Home screen, tap on General, tap on Reset, and click on Reset Network Settings.

    Solution No.4: Reboot your device

    To do this, hold down the lock button, and you will see the slider to power off. Turn your phone back, and see if the No SIM issue is still there.

    Solution No.5: Restore your device

    Connect your iPhone 4/4s to the computer via the cable, and select your device in the iTunes. The next step is to click on the Summary panel, and choose Restore. You will have to click on Restore once again, just to confirm the action. When the task is over, your iPhone will restart. You will set up your phone as new, and you are good to go.

    Source - no-sim-card-installed-invalid-sim-sim-card-failure - more information
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