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  2. Jul 15, 2022 · If you suspect there's a problem with your SIM card, it might actually be a software issue with your phone that's easily remedied with a few simple troubleshooting tricks that don't involve...

  3. Jan 11, 2024 · If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad. If you get an alert that says Invalid SIM or No SIM Card installed, follow these steps. Make sure that you have an active plan with your wireless carrier. Restart your iPhone or iPad. Check for a carrier settings update. Go to Settings > General > About.

    • Restart iPhone. Press and hold the side button and volume up button for a few seconds. This will bring you to the power options screen. The best first troubleshooting step when you have glitches on your phone is usually to restart it to see if the issue gets fixed.
    • Check For an Active Cell Plan. Open the Settings app. If you don't have an active cellular plan, you won't be able to make calls or use apps like WhatsApp or Viber.
    • Check For Carrier Settings Update. Connect your phone to Wi-Fi. If you're having issues with cellular-related activities on your phone and keep getting a SIM failure error, first connect your phone to Wi-Fi if it isn't already.
    • Reinsert SIM Card. Open the SIM tray. If you have a physical SIM, removing the SIM card and putting it back in can help refresh any SIM failure errors.
  4. Jan 25, 2024 · How to Fix SIM Card Failure. Addressing SIM card failure requires a systematic approach aimed at diagnosing the underlying issues and implementing targeted solutions to restore seamless functionality to the SIM card and the associated mobile device.

  5. Mar 20, 2022 · Basic Troubleshooting. 1. Remove the SIM Card and Reinsert It. 2. Clean the SIM Card and SIM Card Tray. 3. Reboot Your Device. 4. Update Your Device. 5. Turn Airplane Mode On/Off. 6. Try a Different Device. 7. Contact Tech Support. 8. Is the SIM Card Active? Advanced Troubleshooting. 9. Reset Network Settings. 10. Update Carrier Settings. 11.

  6. Feb 2, 2024 · 1. Insert SIM in Another iPhone. 2. Check if Carrier Plan Has Expired. 3. SIM/eSIM Is Locked. 4. Is iPhone Locked to a Carrier. 5. Update iOS and Carrier Settings. 6. Reset Network Settings. Future Calling. Why Do SIM Cards or eSIMs Fail.

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