Seems as though various phones have various wording for SIM problems but it also seems like the very first thing to suspect in most of these cases is a phone locked to a specific carrier still.
And yes @CannonFodder , one of my peeves is posts of about 1 sentence with so little info in them. The problem with that here on an active forum with many who want to help is that the OP who is the one who needs the help drags the process of determining the problem out considerably longer than necessary and indeed sometimes never return to clarify. But the main thing is that those who want to help are left to spell out many different possible scenarios and the possible fixes for each scenario. IE the lack of maybe three more sentences in the first post results in hundreds of sentences written by helpers. Not overly courteous really but just my opinion.
