No sim detected after upgrading to iOS 17
After upgrading my iPhone to iOS 17, it will randomly pop up with “No SIM detected”.
Toggling “cellular” will resolve it for the moment, but eventually it will do it again.
iPhone 13 Pro, iOS 17
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User profile for user:
hc1111
User level:
Community Specialist
Hey there SeedLoomis,
To help with SIM related issues, work through the steps below:
1. Make sure that you have an active plan with your wireless carrier.
2. Restart your iPhone or iPad.
3. 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.
4. If your device has an eSIM, contact your carrier.
5. If your device has a physical SIM card, remove your iPhone SIM card or iPad SIM cardfrom the SIM card tray and then put the SIM card back. Make sure that the SIM tray closes completely and isn’t loose. If you use a SIM tray from a different model iPhone, iPad, or from another phone manufacturer, it might not fit properly.
6. 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, contact Apple support.
If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad - Apple Support
Take care!