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

Just to let everyone know, share my happiness ))) Using my Galaxy S2 for 3 weeks now, and NO problems!!! )))

My iPhone 4S 64Gb still collecting dust on a shelf.

Slowly becoming samsung s2 fun... and couple people with me... good buy apple.

Was waiting for iphone 5.... now waiting for galaxy S3 .... but I know... apple does not care...

Hi mohsinali !

Working Fine

- 4S 32gb white (5.1.0 /9A405) firmware 1.0.13

So far working fine: (after performing the steps i posted here)

- 4S 32gb black (5.0.1 / 9A406) firmware 1.0.14

I did the same step (working intermittently) at least with improvement.... i will restore again if the performance is not tolerable

- 4S 16gb white (5.0.1 / 9A406) firmware 1.0.14

thank you

Hey guys! I've got it WORKING! I've tried everything: resetting settings, upgrading to 9A406, etc. Right now i have no more issues of my network loses, and carrier connection loop! The answer was in the sim-card shape. The original microsim from my carrier made my iphone lose my network every 3-5 min! But the full-size sim card, but cut off with scissors fixed the issue! Try it for yourself! (My FB profile) and maybe it would resolve your issue! Hope that helps!

I do not know what happened but after I turned on and off airplane mode and reset all network settings somehow my iphone 4S started working normally. Before I did this too, but nothing helped. Now, miraculously everything worked. 🙂

Hello tarasfrommiamy,

have you got any network and SIM-cards problems since then? If not, can you do your magic with my 'the most amayzing iPhone yet' ? 🙂 My mobile network operator is famous 'life)'.

cleryson wrote:

So dissapointed with APPLE. They are horrible lately. I just left the Apple store after waiting for so long. Turns out the guy tells me to come home and restore the phone and I should be ok. After all this work, my phone is still saying no SIM card. IN addtion, my battery is terrible. Dies every night even tough is fully charged. I DO NOT and WILL NOT reccommend the iphone to anyone EVER again. Big mistake. I love apple products but this is quite a dissapointment. I use my phone for business.

Totally sharing this.

I've got my 4s (5.0.1 9A406, modem 1.0.14) as a gift, and it was bundled with a "Sim failure" head-ache. Before obtaining a working iphone, w/o any success I was trying:

- get newer sim card (same operator, MTS Ukraine, both sims was cut from full-sized)

- restore to the freshest firmware (although it was the freshest)

- turn the flight mode on before reboot

Nothing helped, each 2-4 hours I was getting Sim failure & No service, fixed only after reboot.

I've managed to replace it with another 4s (BTW huge thanks to appleworld.kiev.ua for their good will), and now I have no issues with the same SIM card, just different 5.0.1 (9A405 now, and modem 1.0.13).

Apparently Apple has two 5.0.1 versions (which smells on itself). And the most actual 5.0.1 is worser (for me) than the previous one. Suspicious that I saw posts here that it vice versa helped somebody. Probably Apple doesn't rush to downgrade modem just because it was giving problem to the majority of operators, and 1.0.14 fixes it for majority, for the price of minority happiness.

Well, this philosophy is rational, no offense. What su*ks - is the time (2-3 monthes?) it lasts without a sollution, and without even aknowledging the problem.

I was loyal to Apple so far, but now I'm in doubts.

How many Apple-monthes should it take to fix a phone main purpose?

What have Apple learned from antenna hardware lesson if it's not able to cope with *software* bugs now?

How much should iPhone cost now to stay profitable enough to provide good old quality?

From Mexico: I was unable to use the phone since I get it on December (4 weeks!). Yesterday I went to my provider (Telcel, in Mexico we don´t have all the support of Apple, like Genius line). The changed the phone for a new one, running iOS 5.0. Almost 24 hours without problem! So, I will not update until Apple (came on, you´re already late!) give us some answers! For me, it looks like a software issue... I´m using the same SIM card with no problems.

Regards to all the one, brothers in pain, who posted here... the comments are very useful, as the notion of not be the only one with this problem, as sometimes the technical services make us felt.

I tried everything I could: restore to the newer 5.0.1 build, replace the micro-SIM for a 128KB one, restore the iPhone (as a new iPhone) while in DFU mode... Nothing happened.

My problem is that my iPhone shows full signal strenght, but I cannot make or receive calls. I must turn airplane mode on and off to make it work again.

So, I replaced for another brand new iPhone 4S and... the same problem persists.

I only get this problem when I'm at work. Could it be something wrong with my cell company (Claro - Brazil)?

Hi everybody ! First happy and healty new year !!First i bought my first 4s like 45 days ago directly i update to 5.0.1 than its start showing sim failure when i was trying to call somebody call failed when i was trying to send text its again showing text failure than i went to apple store and show them screenshots and they sent it back and give me the new 4S.Than i was scaring for upload 5.0.1. Also i was thinking problem is 5.0.1.But i update my phone to 5.0.1 . Im using like 3 days and everything pretty good ! I would like to say to you guys go and try to change your 4S.Now im thinking problem is phone ! And im using my phone with 64 kbs micro-sim card.

OLGUNOZTURK wrote:

But i update my phone to 5.0.1 . Im using like 3 days and everything pretty good ! I would like to say to you guys go and try to change your 4S.Now im thinking problem is phone !

Now are there 2 different iPhone 4s in addition to 2 different 5.0.1?

I wonder, do the phones have some different part inside, then they should have different model numbers (unless Apple is so dumb to name them equally, like they did with 5.0.1 firmware).

Mine defective one (non-working on 5.0.1) was a black 16Gb with "Model A1387 EMC 2430" sign on a back. OLGUNOZTURK, could you share your color/capacity/model of a phone working under 5.0.1? And which 5.0.1 exactly also, 9A405 or 9A406?

No right now there is just one phone cause apple store change my phone with new one. Sure i can share,my phone is white / 32gb / Model:MD245B and the version is 5.0.1(9A405). Firmware is 1.0.13

If u have another question just ask me,you are welcome 🙂

I see, 5.0.1(9A405) is not the freshest 5.0.1. Problem spotted on 9A406, modem 1.0.14. And if you have 5.0.1 already (no matter the numbers in brackets) iTunes will say you have the latest firmware (or maybe they just disabled 9A406 recently). So most likely the problem is in 1.0.14 modem.

Thanks for info anyway!

Hello everyone,
I purchased an iPhone 4S in version 5 two months ago from Canada and everything worked correctly until I update to version 5.0.1 and since then show up message

"Sim failure" at random time.
Device information:

Type: 4S

iOS level: 5.0.1 (9A406)

Model: MD234C

s/n: C38GL*

Firmware level: 1.0.14

I tried to do all the suggestions listed in this forum including the new upgrade to 5.0.1.
Eventually I sent the device to Apple Store, and got a new one in version 5.

Since then (4 days) the message does not appear "Sim failure" any more.

The battery holds a lot longer even though the device came on version 5.
The new device information:
Type: 4S

iOS level: 5 (9A334)

Model: MC922LL

s/n: C39GK*

Firmware level: 1.0.11

In my opinion, Apple hides a HW problem on all first models and gives you an expectation (by silence) that the issue will diminish in the next iOS version.
I suggest, go to Apple store and replace the device ..

Thank you

It appears that exchanging phones sometimes works and sometimes doesn't. An exchange of phones can be difficult for some of us because of where we live. Also, there are probably enough exchanged phones in the pipeline now that when you get a "new" exchange phone it could very well be a refurbished phone (something about that bothers me). So that all of us could get a sense of how effective an exchange of phones is in solving this problem, could those of you who have exchanged for another phone kindly post one of the following:

Option 1: Exchanged phones...Everything works fine now.

Option 2: Exchanged phones...Still have the SIM problem.

Sorry to impose, but this may help some of us to decide whether it is worth the effort to go through the process of getting a replacement phone.

Thanks very much, Mr. Luigi

Hi All,

After many weeks of terror my iPhone was exchanged. The new one is Model MD261B and came with iOS 5.0.

Since it has been working for some days (and nights) without a failure I have no intention to upgrade it to 5.0.1.

BTW it's amazing how it works fine, I was getting used to the trouble.

Best Regrds,

Jose Geraldo