No SIM Card Installed

[cycocelica]

So I updated to 1.1.3 and have no received a ton of problems.

First, I was getting a weak signal when before, I had a strong one. Now the iPhone is telling me that there is no SIM card installed. Which blows my mind because the user doesn't install a SIM card, but whatever. How would you go about fixing this? Do I have to send it to Apple?

I had tried restore and resetting everything. Nothing helps.

[philgilder]

make sure the sim is in correctly
or take it back

[cycocelica]

how do you get access to the SIM card?

And

Would this void my warranty?

[markie]

No silly, the SIM card is your authentication smartcard. Just take it out and put it back in. There is a tray on the top of the phone. Eject the tray, reseat the card, and put it back in.

[CD3660]

how do you get access to the SIM card?

And

Would this void my warranty?

Sim Card tray is in the top of the phone and has a very small hole on one edge. Use a paper clip pushed into the hole to release the tray.

Does not void warranty, but handle with care as the tray is quite flimsy.

[Waiting4MacBook]

I have been having this same problem and removing and reseating the SIM card has not helped. It seems even worse after upgrading to 1.1.3. I also have far less or no service in areas I previously did. It appears to be fixed by turning the phone off and back on again, but I fear that may work against me for trying to get it fixed. I'm going to try to go the Apple Store today.

[Waiting4MacBook]

So I went to the Apple Store and asked about this. They cleaned out my SIM tray with compressed air and it appears to have fixed the problem. I was told that the tray itself is a contact for the SIM card so it won't function properly if its dirty. I was also told that if it didnt fix the problem, that they would replace the phone. Hope that helps.

[lucface]

nice! thank you. it worked for me. full bars and good to go.