iPhone 4S dropping network and data at random

@Flaxos

That info is not correct.

I had my first 4s replaced after having all the above issues (signal drop and battery drain)

my new one has IMEI 0129........ and is working perfectly.

Try to update to 5.0.1 then. Lucky enough you might not have to replace it twice.

I'm running on 5.0 and I do not dare to to update.

The weird thing is though that my first one that I got replaced had the same issues both with 5.0 and 5.0.1.

go figure

uralcan wrote:

i am using Avea from Turkey and if you use Mobile Data it always disconnects from network starts "searching" closing the mobile data solves the problem and let you use the phone as a simple phone (no smart phone)

people who may chance to call apple online support and tell that ios 5.0.1 is useless and causes this thing(52.000 people read this discussion and no official answer)

52.000 pageviews = 51.999 hopes for a solution...

AND COUNTING...

http://www.theverge.com/2011/12/19/2646290/apple-iphone-4s-ios-5-0-1-build-fixes -sim-card-error

Mandachuva wrote:

http://www.theverge.com/2011/12/19/2646290/apple-iphone-4s-ios-5-0-1-build-fixes -sim-card-error

92% of you are saying its not true...

http://www.acepolls.com/polls/1240666-is-your-brand-new-iphone-4s-dropping-netwo rk-and-data-at-random

Hi Mandachuva

As you probably noticed going thru the forum the no-service issue affects mostly people who bought their phones overseas then returned to homecountries and are unable to easily fix or replace their phones.

Most of those people are not from the US and since Apple has probably already sold a couple of milion units of iPhone 4s and most of them in USA only minority of units worldwide is affected.

Since unlucky customers are unlikely to be a target group for Apple, their dissatisfaction with Apple product or lack of customer service is not going to affect Apple's sales no matter how loud you shout and how many forums you visit or how many times you contact Apple.

So do DO NOT expect any action/ apologies/ replacement action taken by Apple.

They just do not have to bother to do anything - it is only additional unecessarry costs for Apple which they're NOT going to take.

The only thing you can do is to swap your phone somehow in the country of origin then sell it and buy another working phone by a different manufacturer and never buy anything from Apple again. This is the only reasonable thing you can do just to save your money and time. I am waiting to have my phone swapped in Germany and can't wait to get rid of it and forget about Apple forever...

Witold,

Maybe you are right but:

- Apple (US) just call me today (here in Brazil - the phone was bought in France) searching for technical information about this issue. I´ve sent to them about 400mb of Diagnostics and Log information of my Phone, collected by iTunes.

So, maybe it is important to them..., anyway I will keep you informed.

Thanks

Hope they will find the rootcause - I asked them if they want my logs but they told me they have already enough. Maybe its provider/SIM related 😟

R.

hello am from algeria and i have the same problem with my ( IPHONE 4 ) ios 5.0.1 , the phone droppe the network evry time please help me to find solution😢

26 hours running on update iOs 5.0.1 (9A406) and the simcard and cellular network connectivity haven't resurfaced. I think the latest build works for a batch of units but not for all. They might need to do another update that will target those units that haven't been "fixed." Might be intereseting to come up with a detailed commonality table of which iPhone 4S serials/IMEIs have been fixed and which haven't.

mouradfromalger,

Go to: Settings --> General --> About --> Version. What do you see?

How about: ... About --> Modem Firmware?

Version 5.0.1 (9A405) modem 04.11.08

Here in Russia I have completely the same problem with all types of SIMs from two of three providers in Moscow region - Beeline and Megefon. SIM card from the third provider - MTS works perfectly!

I tried 5.0.1 (9A405), 5.0.1 (9A406), 5.1 beta 1, 5.1 beta 2 and feel no difference at all.

Now I'm on 5.1 beta 2 and using MTS I'm almost happy.

I don't know if it means that the problem is in SIM card or in provider's network configuration. But I do know that it's not a hardware fault in iPhone.

Hope it will be helpful (at least for those of us who is in Russia)

OK, at least i see that it's senseless to install betas on Megafon... thank you.

I'm on 5.0.1 (9A406) and still have the failure.

I've contacted Megafon and they tried to locate the issue. Up to now they do not have to many report about this problem as not much customers updated their 4s to 5.0.1 so far.