Phone Keeps Saying Invalid Sim - Web if you're encountering an error that says no sim or invalid sim, follow the troubleshooting steps below to test. Check for a network provider settings update. Go to settings > general > about. Web restart your iphone or ipad. Remove your sim card, then reinsert it. Restart your iphone or ipad.
Remove your sim card, then reinsert it. Web restart your iphone or ipad. Check for a network provider settings update. Restart your iphone or ipad. Web if you're encountering an error that says no sim or invalid sim, follow the troubleshooting steps below to test. Go to settings > general > about.