I just received my Iphone 4s and within 10 minutes of it being activated I received a "no sim" card prompt. "The problem is that the top part of the mechanism seems to have a design flaw and sometimes it touches the metal contacts on the sim card making a short circuit. As a result, the phone stops recognizing the sim."
I was able to fix this issue by applying a small ammount of nail polish to the sim cards frame. I am posting this incase anyone else out there runs into this issue. People have had luck fixing the issue using a small ammount of nail polish or tape. Here's a tutorial I found: http://wooservers.com/20100710/fixing-iphone-4g-no-sim-installed-problem/
Take care.
I was able to fix this issue by applying a small ammount of nail polish to the sim cards frame. I am posting this incase anyone else out there runs into this issue. People have had luck fixing the issue using a small ammount of nail polish or tape. Here's a tutorial I found: http://wooservers.com/20100710/fixing-iphone-4g-no-sim-installed-problem/
Take care.