Phone Says Invalid Sim - Restart your iphone or ipad. Go to settings > general > about. Web restart your iphone or ipad. Check for a network provider settings update. Before undertaking any of the more involved solutions below, here are a few quick fixes to get you. Web if you're encountering an error that says no sim or invalid sim, follow the troubleshooting steps below to test. If your device claims your sim card is invalid, a quick restart will often fix the.
Go to settings > general > about. Web if you're encountering an error that says no sim or invalid sim, follow the troubleshooting steps below to test. Web restart your iphone or ipad. If your device claims your sim card is invalid, a quick restart will often fix the. Check for a network provider settings update. Before undertaking any of the more involved solutions below, here are a few quick fixes to get you. Restart your iphone or ipad.