Only after a day of having the 3g iphone it's giving me the error "No Sim Card Installed!". I searched around and people say it's most likely a hardware problem if it isn't the SIM Card acting up and to take it to the apple store. In this case since it's still under warranty would they replace my iphone [considering the SIM isn't the prob] with a new one? If so would I have to wait a really long time for a new stock? or would they send it in and have me wait for a refurbished phone?