HT201420: If you get an alert about the SIM card in your iPhone
Learn about If you get an alert about the SIM card in your iPhone
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Q: my iphone says no service
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Jan 11, 2013 1:50 AMby Ingo2711,Try this:
Symptoms
In certain situations, iPhone may present one of the following symptoms:
- "Invalid SIM" or "No SIM Card installed" alert appears intermittently.
- Status bar displays "No SIM" when a SIM card is installed.
Resolution
If you encounter any of the above symptoms on your iPhone, try these steps to attempt to resolve the issue:
- Update your iPhone to the latest version of iOS.
- Toggle Airplane mode On and Off.
- Try turning iPhone off and then on again.
- Check for a carrier settings update. Tap Settings > General > About. If an update is available, a prompt will appear.
- Remove the SIM Card and verify that it is a valid, carrier-manufactured SIM. Also verify that it is not damaged, worn, or modified. Then reinsert it.
- Restore the iPhone.
This might also happen if the phone has been jailbroken before, in that case you're out of luck.
