Stuart Mchattie
Level 1 (25 points)

Q: iPhone 4S dropping network and data at random

Hi,

 

I've been using an iPhone 4 on a Vodafone contract for the past 16 month and just bought an iPhone 4S direct from Apple. It arrived on Friday morning and I got it set up correctly as far as I can tell.

 

When I first turn it on, it works lovely and exactly as I would expect, able to make calls, send texts and access the internet via the cellular network. However, at what appears to be random, the network will disappear (no bars of signal) stopping me making calls and texts, but still allowing me to access the internet.  Sometimes, the Internet goes, but I can still make calls and texts.  Other times, everything is gone and I get "No Signal" where it normally says Vodafone UK.

 

So when trying to fix this problem after it's noticed, I try putting it into Airplane mode and back out.  The phone scans for a network and goes back to the same state as before I tried this fix. I have tried resetting network settings, but this doesn't change anything. The only thing that actually fixes it temporarily is turning the phone right off and back on again.

 

At this stage I assume this is a bug with the software, but I wondered if anyone else is experiencing anything like this? If no one is, I will take it up with Apple, but I don't really want to do that as I love the new phone so much!!

 

Cheers, Stuart

iMac (late 2009), Mac OS X (10.6.3), 27" i7 Quad-Core, 4GB RAM, 1TB HDD

Posted on Oct 16, 2011 2:53 AM

by L2C2002,Solvedanswer
L2C2002 L2C2002
Level 1 (10 points)
A:

Same issue here in Germany with T-Mobile.

The only way to overcome this is to disable the SIM PIN.

Not a real solution but that solves the issues for now.

Cheers

Posted on Oct 16, 2011 4:02 AM

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Stuart Mchattie

Q: iPhone 4S dropping network and data at random

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  • by Mandachuva,

    Mandachuva Mandachuva Dec 26, 2011 9:28 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Dec 26, 2011 9:28 AM in response to Stuart Mchattie

    Dear Apple,

     

     

    Here We are, your customers calling for you...

     

    Maybe some of us have sleep on the door of your stores, or missed all day in a line just to buy this amazing new phone;

    Maybe for some us buy this phone WAS like a dream come true;

    Maybe some of us bought the first Apple product;

    Maybe some of us are loyal Apple costumers;

    Maybe our friends buy your products because of us;

    Maybe we will do it again with iPhone 5;

     

     

    ...but please, Do not leave us alone!!!

     

     

    (Just tell us: We know your problem, still working on it..., the fix is coming...)

  • by udofrombochum,

    udofrombochum udofrombochum Dec 26, 2011 9:57 AM in response to Mandachuva
    Level 1 (0 points)
    Dec 26, 2011 9:57 AM in response to Mandachuva

    Hello,

    my 4s is shipping to Apple. It lost the Network Contact if the Network low-level. Other Phones have no problems,but the 4s have then "no Network". Thanks Apple, for thit good work!! 1 Euro(Dollar) Phones are better.

  • by abdulhameed Mneimneh,

    abdulhameed Mneimneh abdulhameed Mneimneh Dec 26, 2011 11:46 PM in response to MuGeN PoWeR
    Level 1 (0 points)
    Dec 26, 2011 11:46 PM in response to MuGeN PoWeR

    mine is 4s with MD234C

    it cant keep the signal more than 1 minute, i hav to play with it to retreive the signal again...

    my country Lebanon, with MTC touch carrier, zain...

    i did what i hav to do: 9A406

    then nothing improved, the reception same weakness...

    i think apple should specify the antennas that should the 3G and the signal use respectively so they wouldnt confuse again...

    we are waiting the reply

     

    NOTE: THE OTHER CARRIER IN LEBANON "ALFA" IS WORKING BETTER...THEY TOLD ME BECAUSE THEY HAVE AN EARLIER SYSTEM...OLDER ONE, SO THE SIM CAN DO ITS JOB...

  • by Mandachuva,

    Mandachuva Mandachuva Dec 27, 2011 3:13 AM in response to abdulhameed Mneimneh
    Level 1 (0 points)
    Dec 27, 2011 3:13 AM in response to abdulhameed Mneimneh

    Mine is:

     

    Model: MD239F

    S/N: DNTGK...

    IMEI 01 2939

  • by Mandachuva,

    Mandachuva Mandachuva Dec 27, 2011 5:01 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Dec 27, 2011 5:01 AM in response to Stuart Mchattie

    Apple told me that it is something between iPhone and Operator´s Network.

    It´s OK, but to me its a SIM card failure (it is between iPhone and operator´s Network), but not a Network problem. Because a lot of people here bought his iPhone in a Roaming situation and the phone wasn´t working on that network too. Again..., its a SIM card failure. Apple probaly knows it and is trying to get some time so release some update to fix it.

  • by jjfreitas,

    jjfreitas jjfreitas Dec 27, 2011 5:37 AM in response to Mandachuva
    Level 1 (0 points)
    Dec 27, 2011 5:37 AM in response to Mandachuva

    check this link, it worked for me ok.(until now)

     

    http://forums.macrumors.com/showthread.php?t=1292710

  • by Zakarya,

    Zakarya Zakarya Dec 27, 2011 7:08 AM in response to Zakarya
    Level 1 (0 points)
    Dec 27, 2011 7:08 AM in response to Zakarya

    I feel like my new 4s works better, I've restarted it "only" twice today instead of 6-10 times a day.

    but I don't know if I'm unlucky or "cursed", because my new 4S have another problem, I cannot activate Facetime and iMessage. Everytime I restart my phone it send the sms to activate and then "activation failure". I'v restored (again) my phone, but I still cannot activate it...

    I'm really fed up with this iPhone. I think it's my last iPhone. At 630€,you expect to have more reliable stuff.

  • by andrescalzer,

    andrescalzer andrescalzer Dec 27, 2011 9:04 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Dec 27, 2011 9:04 AM in response to Stuart Mchattie

    Same issue here in Brazil with TIM

     

    Apple are you there???

  • by MuGeN PoWeR,

    MuGeN PoWeR MuGeN PoWeR Dec 27, 2011 9:49 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Dec 27, 2011 9:49 AM in response to Stuart Mchattie

    model:MD239B

    S/N: DNPG

    IMEI 01293

  • by bialowas,

    bialowas bialowas Dec 27, 2011 9:58 AM in response to andrescalzer
    Level 1 (0 points)
    Dec 27, 2011 9:58 AM in response to andrescalzer

    Same thing here!!

     

    TIM - São Paulo!

  • by MarcoMedeiros,

    MarcoMedeiros MarcoMedeiros Dec 27, 2011 2:01 PM in response to bialowas
    Level 1 (0 points)
    Dec 27, 2011 2:01 PM in response to bialowas

    Users in Brazil to contact me through facebook. The thing is far more serious and I had to enter the Procon and still have the problem of yellow screen

    http://www.facebook.com/profile.php?id=1079883343

     

    usuario Brasileiro entre em contato

     

    https://discussions.apple.com/message/17114503#17114503

  • by andrescalzer,

    andrescalzer andrescalzer Dec 27, 2011 3:21 PM in response to Stuart Mchattie
    Level 1 (0 points)
    Dec 27, 2011 3:21 PM in response to Stuart Mchattie

    My iphone 4s model is: MD2...

     

     

    Just a model starting MD2 is loosing signal?

     

    MarcoMedeiros me add no msn andrescalzer1@hotmail.com

  • by ronaldnr1,

    ronaldnr1 ronaldnr1 Dec 27, 2011 4:22 PM in response to Stuart Mchattie
    Level 1 (0 points)
    Dec 27, 2011 4:22 PM in response to Stuart Mchattie

    Hi,

     

    Mine is the MD239DN with software 9A406

     

    issues are "no service" and "simcard failure"

     

    i noticed something in the logs a second ago when the phone went into "no service"

     

    Dec 28 01:19:56 unknown CommCenterMobileHelper[733] <Notice>: Checking for an OTA update

    Dec 28 01:19:56 unknown CommCenterMobileHelper[733] <Notice>: Checking for update xml file at: http://itunes.com/version

    Dec 28 01:19:56 unknown CommCenterMobileHelper[733] <Notice>: OTA - Failed to download list of available carrier bundles!

    Dec 28 01:19:56 unknown CommCenterMobileHelper[733] <Notice>: Not updating carrier bundle as there is no update available

     

    makes sense?

     

    Ronald.

  • by IRock_,

    IRock_ IRock_ Dec 28, 2011 4:48 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Dec 28, 2011 4:48 AM in response to Stuart Mchattie

    I bought my 4S from Australia. Brought it to Cambodia. Activate it here and it has been giving me the same problem describe in this forum. I was fed up. Ask a friend brought it back to Aust to exchange it in Apple store. Though before that I let my friend use Aust sim card for a few days to see if it works ok. And it works fine for the entire week. No drop call no sim card failure! I don't understand! Now I'm on my 2nd 4s and it works in Cambodia perfectly. Same bloody sim card!!

  • by PedroFelipeAB,

    PedroFelipeAB PedroFelipeAB Dec 28, 2011 4:56 AM in response to andrescalzer
    Level 1 (0 points)
    Dec 28, 2011 4:56 AM in response to andrescalzer

    Hi,

     

    My name is Pedro and I'm also from Brazil.. I went to USA and bought a new iPhone 4S UNLOCKED.

    I came to Brazil and I had the same problem that everyone over here. I use TIM. I called the company several times and nothing changed. I was was losing the signal and I coudn't make any calls.

    Frist I thought the problem was with my iPhone, them I tried to use another company called OI and it worked fine.

    Then I was looking at the internet and I found this: http://support.apple.com/kb/TS4148

    So I pluged my iphone at my computer and I followed all steps. FINALLY its working perfect now (even with TIM)

    I'm glad I have no problems anymore with my iPhone 4s and I hope everybody can fix their phones.

    if you do it and it works, please let everybody know.

     

    PEDRO FELIPE

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