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- 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. If an update is available, you'll see a prompt to select OK or Update. If your device has an eSIM, contact your carrier.
support.apple.com/en-us/108914
People also ask
What if my SIM card is not installed?
How do I know if my SIM card is faulty?
What if my phone can't detect my sim card?
How do I fix a SIM card not working on my iPhone?
- Symptom #1 Physical Damage. It’s obvious. If you find out that your SIM card is physically damaged, then you should be concerned. To check that out, you should remove the SIM card from your phone and see any physical damage.
- Symptom #2 Network Issue. If you notice that there are network issues on your phone, this could be an indication as well. But the network issue should be frequent and persistent because your service provider might also have network issues in your area from time to time.
- Symptom #3 Calls and Messages are being delayed or interrupted. If your SIM card is faulty, then you will notice that your calls are dropping all the time.
- Symptom #4 Sound Quality is bad in Call. Another sign of a faulty SIM card is that you may experience bad sound quality while on call. For example, if you are on a call with someone and the SIM is damaged, then you will not hear from the other side clearly.
- Overview
- Contact Apple Support
If you receive an alert that says Invalid SIM or No SIM Card installed, follow these steps.
1.Make sure you have an active plan with your wireless network provider.
2.Restart your iPhone or iPad.
3.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.
4.If your device has an eSIM, contact your network provider.
5.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. Make sure the SIM tray closes completely and isn't loose. If you use a SIM tray from a different model of iPhone or iPad, or from another phone manufacturer, it may not fit correctly.
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