Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

iOS 5.1 severe problems to connect to a mobile phone network

My iPhone stopped working as a phone.

Can't make/send or receive calls and text messages after updating to iOS 5.1.

It's like the phone function of the iPhone has been disabled.

When I check my settings it appears that it is connected to my local service provider. In the top left hand corner of the screen I only get one connectivitiy bar.

No matter where I am.


What can I do? How can I fix this or do I have to wait untill the guys at Apple Inc. come up with iOS 5.2?

iPhone 4, iOS 5.0.1

Posted on Nov 15, 2011 8:27 AM

Reply
74 replies

Mar 16, 2012 6:41 AM in response to D Diehl

Update: For some reason, it started working all on it's own...WITH 3G enabled.


One thing I noticed before it "self-healed" -- my 3GS could connect to AT&T and make calls WITH 3G enabled in other local areas (I live near Atlanta). But, if I went home, it'd stop working (when it used to work before).


Could it be that this phone update also required a cell network update that needed to propagate? Maybe the local cell was not configured properly? Who knows.


All I know is that I was in the middle of a job search and lost contact with two potential employers to took my lack of communication as "blowing them off". The timing of this couldn't have been worse.


Leason learned? Don't do an update until at least a week after it's been released to make sure you don't suffer the same fate -- just like I do Windows updates. I'm sure Apple won't agree. They'd rather you update asap especially if it's a security-related patch. It's your decision.


Dave

Mar 16, 2012 7:02 AM in response to koesherbacon

This is almost certainly due to your APN settings getting screwed up. iTunes will automatically apply settings based on their database for your carrier, and I've found that it's not always correct.


Example: after upgrading to 5.1 the phone showed I had 3g but I couldn't not connect to the web. I changed the APN and within seconds I was working again.


Either talk to your carrier or Google search for your carrier and APN and you'll find more details.

Mar 29, 2012 4:00 PM in response to laurafromwexford

I upgraded my phone on 24th March to IOS5.1 and I've had poor or zero service. I've noticed that if I loose service I can't get it back without turn the phone off and back on again which is extremely frustrating especially if I haven't noticed when I lost service. I eventually spoke to my service provider who, after numerous checks said that it wasn't the service that they provide as my sim works in another iPhone (this iPhone hasn't been upgraded). So I went to Apple. They eventually gave me a new phone and their genius guy said that it was a known problem. So I went away with my new phone for it to happen again. So back I went to Apple, for them to give me another new phone. The phone didn't have IOS 5.1 and it worked fine so a day later I connected to iTunes and now I've had nothing but problems with service again. So on the advice from Apple I've factory defaulted my phone and wiped iTunes from my laptop and started a fresh.... And guess what.... As soon as I loose service I can't get it back without turning the phone off.

I'm that frustrated now that I'm on the verge of demanding a new phone that's not Apple! How can Apple, knowing that there is a BIG issue with the latest update, not get something out to resolve the problem or send a down grade out.


Very frustrated and angry apple customer!!!!

Apr 8, 2012 3:02 PM in response to laurafromwexford

After reading this thread, I am staying on IOS 5.0.1 on my iPhone 4s PERIOD! It's working great and battery life is very acceptable. I don't see much of a response from Apple on these iPhone 4s (or any iPhone) IOS 5.1 problems and the last response above about having to have the phone replaced like three (?) times, even after wiping iPhone and iTunes and starting from scratch is just too disappointing to hear.


Apple, what do you have to say? For now, I guess I'm not going to be listening to any iTunes requests to update and the "1" is going to be on my Settings icon FOREVER.

Apr 9, 2012 9:13 AM in response to numismaddict

After reading this thread, I am staying on IOS 5.0.1

Maybe if you actually did read this thread, you might understand that most of it was about iOS 5.0.1, which the OP miscalled "5.1" in the title.


Apple, what do you have to say?

Maybe if you had read the forum Terms of Use you agreed to when you joined, you might understand that this is a user--to-user tech support site and Apple doesn't read or participate much here.

Apr 9, 2012 9:53 AM in response to modular747

modular747 wrote:


Maybe if you actually did read this thread, you might understand that most of it was about iOS 5.0.1, which the OP miscalled "5.1" in the title.



I did read the thread. Several responders to this thread made entries after the release date for iOS 5.1 and referred to "iOS 5.1" in their posts. Did they make the same mistake as the OP? If so, I'm sorry I misread them and I'm glad you have the high intelligence to point out their errors correctly to me.


modular747 wrote:




Maybe if you had read the forum Terms of Use you agreed to when you joined, you might understand that this is a user--to-user tech support site and Apple doesn't read or participate much here.

I did read the terms and was still hoping beyond hope that Apple might still review user input that is available to them. Failing that, perhaps a lofty user such as yourself could pass the word on to them? It does seem that Apple is very quiet on some possible issues with IOS 5.1


And finally, I'd like to thank you for addressing the concern I brought up. Oh wait! You didn't.

Apr 9, 2012 8:15 PM in response to numismaddict

Several responders to this thread made entries after the release


If you read the posts made after the release date of 5.1, they are all vague and none indicate they read the rest of the thread or tried the methods to fix the problem that worked for others.


perhaps a lofty user such as yourself could pass the word on to them?


There are no "lofty users" here and NONE of us has any more access to Apple than you.


Apple is very quiet on some possible issues with IOS 5.1

Apple doesn't discuss "issues" here and rarely anywhere. There is no evidence that there is a real issue about 5.1 connecting to the mobile network. >50 million users have no problem at all.



And finally, I'd like to thank you for addressing the concern I brought up. Oh wait! You didn't.


That's because you didn't discuss any "concerns" - just whining and a spectacularly lame declaration of your intent not to update from 5.0.1 to 5.1 based on unverified claims of a single post. The really amusing thing is that there were far, far more posts about this problem with 5.0.1 than 5.1 in this thread alone. Unbelievable!

Oct 29, 2013 9:45 AM in response to laurafromwexford

Two years later!!! I have just had a APPALLING experience at the Apple Store in Westfield Stratford City, London.


I purchased an iPhone 5 just over two months ago. As of Friday the phone shows full WiFi connectivity but no carrier service and therefore no 3G. In other words the phone does not work as a phone and I can only connect to the internet via WiFi.


I called O2, my carrier, they did a bunch of tests and asked me to go into an O2 store. In the store they did a bunch of other tests (Resets, swap SIM card etc) and they told me that the fault was with the handset, that the mobile transmitter was probably faulty and I would need a replacement phone. Deja Vu!! Precisely the same problem happened with a previous iPhone 4 and I needed to have that one replaced too. So I visit the store I purchased the phone in and they tell me to go to Apple, that they would simply replace the phone.


So I go to the Apple store in Stratford. I get in line and eventually get to speak to a guy with an iPad named Marcel. He tells me that I need an appointment so come back some time next week! I knew nothing of an appointment process but he behaved as if I should have done so (the store I purchased the phone in apparently should have told me but they did not).


I explained that I have been 5 days without a phone, I need it for business, I have only had the phone for two months, I do not live/work near any of the 3 Apple stores in London (it is not as if there is one located on every corner) and it is the SECOND faulty phone I have purchased from Apple. He said that they were busy and there was nothing he could do. I said that I simply needed someone to exchange my phone. He replied that everyone in the queue might need their phone replaced (of course ridiculous as many of the problems people go into the store with are trivial). Astonishingly he then advised me that I could purchase another phone there and then in order to use it while he finds an appointment slot for sometime next week! Then I could return it within 14 days. I told him I wanted to speak to a manager. He said he was a manager. I said I wanted to speak to a more senior manager. He claimed he was one, which was a lie as he had been instructed earlier how to handle the queue by a clearly more senior person. I left.


So the idea that all problems are equal is clearly a nonsense. A one appointment/queue system for all issues is ridiculous. For someone who needs a replacement phone, with certainty, they should be accommodated. I am now paying for a service which I do not have and a replacement there and then would have been easy. A guy using his common sense would also be helpful.


Apple was a company which I previously admired for their service as well as their innovation, design etc. Clearly the company has got lazy, smug, self satisfied and arrogant. Which is why it is losing market share to competitors who have worked this out and are playing on it. My experience today simply confirms that unless action is taking quickly to reinvigorate the brand, Apple are a the beginning stages of a long slow decline. Very disappointing!

iOS 5.1 severe problems to connect to a mobile phone network

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.