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      • If your device has a physical SIM card and you've completed the previous step, try using another SIM card. If you don't have one, go to your carrier's retail store and ask them to test with another SIM card. You might need to replace your SIM card. If you still see an alert about your SIM card, you might need service.
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  2. Nov 25, 2023 · If you open the SIM tray and don't see a SIM card, check under Settings > General > About and scroll until you see information about your SIM. If you see a heading that says "eSIM" and no heading about "physical SIM," then you must contact your carrier for eSIM assistance.

  3. 1 day ago · Steps: Press and hold the Sleep/Wake button on the top right side of your iPhone until the Sleep slider appears. Slide the slider to the right to shut down your iPhone. Wait for 30 seconds before ...

  4. Mar 13, 2024 · Step 1: Restart Your iPhone. Turn off your iPhone and turn it back on. Sometimes, the simplest solutions are the most effective. A restart can help reset your phone’s connection to the network and may clear up any minor glitches causing the SIM failure. Step 2: Check for a Carrier Settings Update.

  5. Your iPhone 13 might display “SIM failure” due to software glitches, an outdated iOS, or physical issues with the SIM card itself. It could also be related to carrier settings or a misaligned SIM card.

  6. Feb 11, 2024 · When encountering SIM card issues on your iPhone 13, it's essential to approach troubleshooting systematically to identify and resolve the underlying causes. By following these steps, you can effectively troubleshoot SIM card issues and restore seamless connectivity to your device.

  7. Oct 2, 2021 · Fix #1. Check for activation error. Fix #2. Check for a carrier settings update. Fix #3. Last Line No Longer Available iPhone 13. Fix #4. Reset network settings. Fix #5. Re-insert SIM card. Fix #6. Turn Airplane Mode on and off. Fix #7. Restart your iPhone. Fix #8. Check if you have network coverage. Fix #9. Look for an iOS update. Fix #10.

  8. Check for a network provider settings update. Go to Settings > General > About. If an update is available, you'll see a prompt to select OK or Update. If your device has an eSIM, contact your network provider. If your device has a physical SIM card, remove your iPhone SIM card or iPad SIM card from the SIM card tray and then put the SIM card back.