Sim Card Failure No Sim with iPhone 4S Anyone Else?

I had the same problem on my new iphone 4 S , soI asked help from my line operator , they couldnt solve the problem . So I begun to innovate and trying, in the end , i found a part of the solution; I tried a sim from another operator , it WORKS, the problem was the operator's sim , it was a large one , the second is small without one copper edge , but why ?? both of sims work on iphone 4 and all other mobile phones. I had to send messages to all my list of contact to inform them my new number .I lost time and money , thanks to APPLE. ( Nabil from Lebanon)

I'm having the same issue too with a 64 gb sprint iphone 4s along with wifi and reception issues. Running 5.0.1. I tried 2 restores now, (one with setting up as a new phone) removing and putting the sim back in. I think I'm going to go to sprint now. I seen that replacing the sim fixed the issue for a lot of people.

Same problem here in Mexico (iPhone 4S 16gb) with Telcel(US-ATT = GSM), i'm getting tired of all this crap, i can't use my phone normally, it's driving me crazy!!!!!!!!!!, i tried all workarounds in a lot fo differents forums and none of them worked... i'm very disappointed on Apple........does iOS 5.1 fixed the problem?, can anyone confirm that?

Me too. Unlocked iPhone 4s 16gb black. All of a sudden it appeared a message that said no sim card.

Rebooted the device and reset networks settings for several times. Finally the phone got signal from at&t but can not make a phone call or send a text message. Problem solved by restore the device to factory settings. I think this is a hard or software problem because i tried several other sim card but none of them works during that period.

I got my phone exchanged. It came preloaded with 5.0.1 -> all seems to be working, for now...

but kinda strange: I am a little excited when I check and see that I can make phone calls, with my phone... ;-)

This is for guys who r getting network but cannot make call whn u see network make a call

u will not be able to ur network will go to searching and then whn u get network back u will be able to call till 15 20 min this is for temporary use till 5.0.2 coumes out.....reply if any quaries ???

I'm on my 3rd iPhone because of this issue. Apple will not admit that there's a problem an VZW acts likes it a new problem. I have used the "tape" so I can keep the sim card inserted. I'm afraid that I will loose it if I take it out.

Has anyone with this issue travel abroad where they need their sim card to work? If so what's happened?

I have iphone 4s with latest 5.0.1 only for 6 weeks. Just happened this morning with error: invalid SIM then no SIM.

Recyled power worked for few minutes then back to same error. I removed SIM and cleaned it and now it seems OK bur not too confident. It happens again i think there's more to it than just reseting the SIM.. suspec may be hardware, firmware error etc...

I have my second iPhone 4S 16gb (replacing firstone with 5.0.1), Model starts with MD2 and iOS 5.0.0, and a new SimCard... everything it's ok, but after 5 hours, the famous message appears... The message appears inmediately when i activate 3G, so, i'm deactivate and everything goes fine again, i beleave this is a mix problem, hard+soft, I don't dare to upgrade and I waiting for an official Apple response, It's a fantastic piece of technology!!! come on Apple!!! do something!!!!

ლ(ಠ益ಠ)ლ

I am getting sim failures every 2/3 hours on my iphone 4s. I didn't have any problems until I upgraded to 5.0.1, I have tried to restore to factory settings but I'm forced to install 5.0.1 when trying that.

My battery is also worse, the usage stats are all incorrect for example after charging before I go to bed, I will wake and the usage stats will say the phone has been in use for 5-6 hours, it's ridiculous. What is going on, do I need to return my phone or wait for 5.0.2??

Even the complete/ultimate restore and purely new setting of iphone 4s did not help me, still getting sim failure.

What i am actually testing now is: restoring all settings and set up a new iphone (to be sure it is pure). Then activating it with new apple id and cloud disable (only thing enabled is wi-fi and 3g). As I have a very unstable connection at home it does not usually take long before the sim failure arrives - after that iphone is unable to find ceullar after it is lost (right now it is able). Sooo i will leave it rest till next morning. If I see sim failure again... well dunno what might help, i would have to use another phone.

Latvia,Tele2 LV, iPhone 4s, 16 gb, 5.0.1

Using it for 2 days, yesterday I made 3 calls out of 50, today 0 out of 30, something like that. And yesterday I was able to receive something about 15 calls, today the same. Today at day all the time had “No Service” message, now at home it shows 3 service bars and can receive calls from my second phone, but can’t call anyway. Here in Latvia is no Apple store, so I have 14 days from purchase date to return it and get all money back, it was unopened for 3 days so I have 9 days left.

I thought that I pay for quality, not for brand. But now it looks like message from Apple to the world: “Look, we can sell very raw product and even with it beat selling records.” There is no any official message from Apple that they know that this problem exists (I don’t believe that they don’t know) and that problem will be solved.

I like iPhone 4s very much, but I would like it more if it would be able to act like a real phone. If in a week there won’t be any information or updates from Apple that this will ever be fixed, I would have no choice, only to return this to shop and buy phone with Windows or Android. If I would want iPod, I would buy iPod. I needed iPhone, but got iPod. No, that’s not the deal. And there is no prove that this problem will EVER be solved.

Since turning off cellular data I haven't had a problem, the battery has also only gone down 8% in 4 hours whereas it would have been 30-40%.

So it looks like this is the cause, as least for me. Is this a known fault in 5.0.1??

Same problem here. Bought an iPhone 4S (White, 32 Mb - AT&T) on Monday, and toninght I began getting "Invalid SIM" error messages. After turning the iPhone off and on again, I was able to get again a signal but then the call dropped and the same error message appeared again.

I've been in China for 3-4 weeks over the past 2 months and this has happened two times. Its like the phone just stops recognizing the SIM card. I can pull it out and put it back in and there is NO message on the phone. Generally when its like this I can send text messages but cant recv anything. Its beyond frustrating.