In the last few weeks I've noticed that every now and then I look at my phone and I see a 'SIM Card Error' message, during which I can't receive/make calls or send/receive messages. A quick restart of the phone and it's good to go.
This seems to be happening now 3-4 times a week, and I'm starting to get annoyed as its making me miss calls and messages. Any ideas on how to resolve this?
Thanks!