How to Fix ‘No SIM Card Installed’ Alert on iPhone/iPad

Many of you get troubles when you can’t activate or use your iPhone without a SIM card with the constant popup saying, “No SIM Card installed” and “Invalid SIM.”? These warnings are normal, and there is nothing to worry about. Just after you insert a SIM card, then the alerts would automatically disappear.

But some users have reported that they still continue to see the warnings even their SIM card has been inserted. If this case happens with you, you should try one of the following methods to fix the issue.

How to Fix iPhone Keeps Saying No Sim Card

  1. Restart your iPhone/iPad
  2. Turn on AirPlane Mode and turn it back off
  3. Update your device to the latest iOS version.
  4. Make sure the SIM card is activated with your carrier

These are simple ways to make this warning disappear if you use your iPhone as a primary method of communication.

In case your iOS device has been jailbroken, you can easily get rid of this alert forever using a tweak called CopySIM. It is a free jailbreak tweak and will do that task for you. The tweak is now available from the BigBoss repo. Once installed, CoySIM will provide several options ỏ you to choose. One of them is disabling the “No SIM Card Installed” alerts in your iOS device.

Also see: Cream 2 for iOS 10 launched with Control Center and Colorized Toggles

Another small useful function you can try is to change the “No SIM” from the status bar to “No Service”.

Additionally, iPhone users can also remove their carrier name if you want to hide it from other people when using this tweak. This tweak is very neat, especially for those who have an iPhone only aim for browsing the web, listening to music, playing mobile games, or doing everything else except for the phone-dialing feature. Open Cydia from your Home screen, download and install CoySIM tweak, it’s compatible with both iOS 8 & 9.