The SIM (subscriber identity module) card is a small card inside your phone that establishes a network connection. The SIM card is provided by your operator or service provider. In most cases, they are the best source of assistance with SIM card problems. Your phone may display a SIM card error message if:
- The SIM card is 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 service providers. In this case, either your SIM card or your phone may be configured for your previous operator and may require reconfiguring. It may also be that your phone is configured so that it cannot be used with a SIM card from a different operator or service provider. Please contact your current operator or service provider for 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 to have the SIM card tested and/or replaced. Or alternately, bring your phone to the nearest Nokia Care point for inspection