I did some crazy things with my 3g 16gb iphone and now when I put my t-mobile sim I get the message badge on the voice mail icon, when I put the att sim in it goes away and when I put back in my tmobile sim its gone only after I clear my messages, badge comes back on when I receive a new message. It switches between no signal and one signal bar, and never says tmobile network, when I place in airplane mode and back off it says unrecognised sim i then reboot. under version I have 2.1(5F136). any ideas whats goiung on??