If your phone suddenly won't recognize your SIM card, don't panic. There are a few things you can do to try and resolve the problem. Here's what to do.

These are proven fixes you can use if you’re looking to resolve the “No SIM card detected” or “No SIM card installed” issue on your iPhone or Android smartphone.

When a smartphone failed to detect the SIM card or shows a SIM card error, network-related services won’t be available. Hence you won’t be able to send and receive text/SMS messages. Incoming ...