These kind of messages are displayed in the following situations:
- The SIM card may be out of alignment. If the phone has recently been dropped, bumped, or opened, the SIM card may need adjusting. Follow the SIM card installation instructions in your user guide.
- The PUK (Personal Unblocking Key) code is entered incorrectly multiple times. This can inactivate the SIM card. If inactivation appears to be permanent, contact your operator or service provider for a new SIM card.
- You have recently changed your operator or mobile service provider. In this case, either your SIM card or your phone settings may have been configured for your previous operator and therefore reconfiguring is needed. It may also be that your phone is simlocked, so using a SIM card from a different operator or service provider is prohibited. Please contact your current operator or service provider for further assistance.
If none of the situations above apply and you continue to receive this error message, your SIM card may be damaged. Please contact your operator or service provider. Or alternately, contact your local Nokia Care Point for inspection. Nokia contact information can be found on https://www.nokia.com/support