Not registered on network message - not resolved by removing the battery when the phone is on
For 2 days now, my phone has not been able to receive or make calls, or text. When I try to make a call, I get a message that says 'Phone not registered on network'. I looked at the forum and the suggestion was to remove the battery while the phone is on. I've tried that and still get the same message. Also, my contact list is incomplete - many numbers that should be there are either missing or incomplete.