Invalid SIM Card on iPhone 4S (5.0.1)

how to update 5.0.1(9A406) to 5.1B3 (legally)...?

Become a registered Apple developer and then install it if they give it to you.

Same problem here.

Activated the iPhone last wednesday, jan 11th. This Sunday the problem started. Rebooted and it worked for one day. Monday not even rebooting. Tuesday morning updated to the iOS '6', no changes.

Went to my carrier store, got a new SIM card. Worked for 30 min perfeclty (call, sms, 3G...), then 'No Service'.

The weird thing is that I bought the phone toghether with my brother, and, except the fact that his iPhone is white, we have exactly the same configuration (carrier, plan...etc), and he didn't get any trouble.

If anyone knows of a solution...

Yeah, take it back again :-(

I took mine back on Sunday, they replaced it straight away saying that I had an 'early build' (not sure if that's true or not), but the replacement has been fine and now it's Wednesday. It's a known issue to them, too.

Best of luck,

g

Updated using the new update through itunes and it still is showing no sim card!!! NOT Fixed!!!! For a $800 phone this really stinks!

Hi everyone!

finally I changed my phone last saturday and since then it's working well. I hope it will continue in this way.

Good luck!

My Iphone 4s still having invalid sim error after updating to 9A406 :-(

I purchased my iPhone 4s begning of month, since installing sim card i am getting invalid sim error, dealer update it to 9A406 but still no effect, what i should do ask for replacement, or keep waiting for new updated.... please suggest.

Just took my iphone 4s back to the apple store after getting the 'invalid sim' error 5 times over 3 days, twice after applying 9A406. They replaced it free of charge without any argument what so ever and said if it happened again it must be a problem with the sim.

9A406 Didn't work for me as well. I am now on 5.1B3 for a week and no more errors ever since.

In places with a bad signal if feel that it tends to drop into "no service" sooner though.

VOORSLUB - how did you update to 5.1b3..?

plz tell me *** soon as paossible

as*

@vikunj A while ago I joined Apples IOS developer programm because I couldnt wait for the official release of 5.0. Now I am even more happy I did that

@vooslub-can you please! help to update if possible ! ifu can it's well n good otherwise no prob !

Hi,

i would like to share my experience with this problem.

I bought a 4s in Germany from o2 that sells officially unlocked phones. Everything worked fine with their card with 5.0.1. update officially provided by iTunes. Then i went to Hungary and ordered a microSIM from Telenor. Plugged it in, and immediately it did not work at all. Then i followed the tweak given by Apple about the correct update to 5.0.1 (backup, restore and then update again). Worked. For two weeks... The last two days i had 4 times the invalid SIM problem. Can someone tell me how the **** is that something, a software/hardware combination works fine and all of a sudden has a "flash" that it needs to crash??? A private iphone shop/service told me to have it changed by Apple on garantee basis since this a problem of a certain chipset. But then why did it work fine for two weeks? The truth is that a couple of days ago i bought some apps. Can this be linked to this? I have also realized how many low memory messages can be found in the diagnostic reports. Before all the crashes there were some low memory reports. Also the invalid sim crashes happened at low battery...