Hi there, just wondering if anyone would be kind enough to help out a damzel in distress!! I have bought my 9 year old son an older iphone3G. When I put his sim card in nothing happens. I remember when I bought my husband his iphone he had to replace his sim but I cannot remember why. By any chance do I need an activated sim or something in order to use this iphone. Its the full size sim not the micro sim. Thanks in advance!