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 ahmedelghoneimy,

    ahmedelghoneimy ahmedelghoneimy Nov 13, 2011 4:58 PM in response to Stuart Mchattie
    Level 1 (4 points)
    Notebooks
    Nov 13, 2011 4:58 PM in response to Stuart Mchattie

    here is photo for the micro sim i got today from Vodafone Egypt to make the iphone work after 5 days of no network finally it's work perfect

    final report after 12 hours from replacing the sim card iPhone 4s have a strong signal reception than iPhon 4 at the same place i become able to talk freely for long time without need to go out near to street 2 bars or 3 bars always it's perfect, why Apple didnot inform about the problem for old sim card and let people looking for answers, as you see in the picture for the new sim it's diagram is different than old one, hope this will help all here, Regards

    photo.JPG

  • by IRock_,

    IRock_ IRock_ Nov 13, 2011 6:36 PM in response to Stuart Mchattie
    Level 1 (0 points)
    Nov 13, 2011 6:36 PM in response to Stuart Mchattie

    When will this be fixed? I work up with my phone showing "Invalid SIM card" This is extremely frustrating!

  • by Ranram318,

    Ranram318 Ranram318 Nov 13, 2011 6:42 PM in response to Stuart Mchattie
    Level 1 (10 points)
    Nov 13, 2011 6:42 PM in response to Stuart Mchattie

    This is more than fustrating. Imagine i paid so much money for a phone and i cant even recieve a call. Im ashamed to tell people this. Any word from Apple on this problem?

  • by percival35,

    percival35 percival35 Nov 13, 2011 7:32 PM in response to Stuart Mchattie
    Level 1 (0 points)
    Nov 13, 2011 7:32 PM in response to Stuart Mchattie

    i'm from Philippines and using 128k sim provided by my service provider Globe. i also have a new iphone 4s which was originally working but when i updated to 5.0.1 the signal or network connection keeps dropping. the solutions posted by several people here are just temporary coz i've tried them all and still the problem is the same.  APPLE has to make a new update to correct this all.

  • by TomL100,

    TomL100 TomL100 Nov 13, 2011 8:33 PM in response to TomL100
    Level 1 (10 points)
    Desktops
    Nov 13, 2011 8:33 PM in response to TomL100

    I forgot to mention that my 4S has NOT been upgraded to 5.0.1.

    It isstill running 5.0 but did show the No Service until turned off, then back on.

    So, maybe the problem exists in 5.0 marginally and gets worse with the 5.0.1 upgrade?

    This has only happened one time, so far.

  • by nesse10,

    nesse10 nesse10 Nov 14, 2011 12:09 AM in response to albertqui
    Level 1 (0 points)
    Nov 14, 2011 12:09 AM in response to albertqui

    I have tele2 in Sweden with the 128k sim, but still no success.

    Seems that was not the issue after all, even though some people claim

    It solved their problems

  • by hejo82,

    hejo82 hejo82 Nov 14, 2011 12:26 AM in response to nesse10
    Level 1 (0 points)
    Nov 14, 2011 12:26 AM in response to nesse10

    That's really bad news for us with Tele2 in Sweden. It seems like a solution is far away right now. How can I see what SIM-type I've got?

  • by albertqui,

    albertqui albertqui Nov 14, 2011 12:48 AM in response to hejo82
    Level 1 (0 points)
    Nov 14, 2011 12:48 AM in response to hejo82

    I've never been more disappointed with Apple than I am right now.

     

    How can a phone priced this high not work properly?

  • by nesse10,

    nesse10 nesse10 Nov 14, 2011 1:01 AM in response to hejo82
    Level 1 (0 points)
    Nov 14, 2011 1:01 AM in response to hejo82

    @hejo82

    Ring kundtjänst och fråga, men om du nyligen fått ditt simkort

    så är det med största sannolikhet redan 128k

  • by Long Chean,

    Long Chean Long Chean Nov 14, 2011 1:03 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Nov 14, 2011 1:03 AM in response to Stuart Mchattie

    I can't make calls. I can't recieve calls. I can't text. I can't recieve texts. The phone constantly hunts for signal. This is not an iPhone. It's an "iCan'tUseItPhone" Not only is my phone absolutely useless. Here's another issue with the 5.0.1 update. My iPhone 4 or 3GS would immediately display "No SIM" if you remove the SIM. Yet my 4S shows signal and a provider. Makes me think of what the "S" in 4S stands for. **** perhaps....A little help here Apple.

     

    4S SIM Issues-1.jpg

  • by Wkuratov,

    Wkuratov Wkuratov Nov 14, 2011 1:15 AM in response to Long Chean
    Level 1 (0 points)
    Nov 14, 2011 1:15 AM in response to Long Chean

    Same $#%@ here, without sim it shows signal.

    But i can recieve calls and texts, but when i try to call, it drops signal and start searching it and after some time i can make 1 call or send 1 sms, and then @#$% startin again.

    And also after, i don't know, maybe 5 hours it says SIM failure, invalid sim and only reboot helps.

    It worst iPhone yet.

  • by MuGeN PoWeR,

    MuGeN PoWeR MuGeN PoWeR Nov 14, 2011 1:21 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Nov 14, 2011 1:21 AM in response to Stuart Mchattie

    got a new micro sim from the provider and the problem solved!! its working perfectly fine now:D

  • by Long Chean,

    Long Chean Long Chean Nov 14, 2011 1:22 AM in response to Wkuratov
    Level 1 (0 points)
    Nov 14, 2011 1:22 AM in response to Wkuratov

    Same thing here. It's that **** IOS 5.0.1 Everything was fine on 5.0 except battery drainage but now I wish the problem were only battery drainage! I think Apple is trying to tell us something. Don't **** with us or else! It seems that many people are desperate for solutions even switching to 128k SIM's which I find it hard to believe solves anything since my SIM works just fine in other phones. It's definitely a software issue or all the times I told Siri to shut the **** up. I think she's ****** and is on the path to vengeance.

  • by Iarauf,

    Iarauf Iarauf Nov 14, 2011 3:09 AM in response to huongfromhanoi
    Level 1 (0 points)
    Nov 14, 2011 3:09 AM in response to huongfromhanoi

    I think this might work out

     

    First off

     

    Go to settings ,

    Just after location services there is carrier settings - open that

    Switch off automatic and select your sim carrier

     

    That's all check if that works

  • by kabdulhak,

    kabdulhak kabdulhak Nov 14, 2011 3:34 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Nov 14, 2011 3:34 AM in response to Stuart Mchattie

    i live in cairo and i am using vodafone and i keep losing my network every 15 min since i have done my update on the iphone 4s to 5.0.1 and it says invalid sim and i have to reset network every time then it works for a bit. any news???

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