Originally Posted by xpxixpy
Hi.
My iPhone has been working fine but since last night I've not been able to use the phone or Edge. When I try to use the phone it says "No SIM card installed". On the upper left of the screen it says "No SIM." I turned the iPhone off and back on to no avail. I also removed and inserted the SIM card.
Anyone have any suggestions?
Thanks,
An Anxoius iPhone Owner
You know the exact same thing happened to me yesterday... I had my phone about a week and no issues, then all of the sudden I wake up and it said "No Sim". I took it in and out a few times with no luck, then I went to the AT&T store and got a new SIM - went through the activation agian (which only took like 2 mins) and it was fixed. Maybe the heat from the phone damages the sim card or something. You should get a new sim and it should be fine.