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

Close
Stuart Mchattie

Q: iPhone 4S dropping network and data at random

  • All replies
  • Helpful answers

first Previous Page 65 of 69 last Next

  • by c_manoj,

    c_manoj c_manoj Mar 8, 2012 2:37 AM in response to c_manoj
    Level 1 (0 points)
    Mar 8, 2012 2:37 AM in response to c_manoj

    Hi

    Updated to 5.1 this morning .... So far so good.. 8hrs now...all calls goin thu in the fist attempt...getting incoming calls too... Cheked in low signal areas also...it is able to latch on the signal with out any problems ....keeping fingers crossed ... Should not get invalid sim tomorrow morning.

  • by Zakarya,

    Zakarya Zakarya Mar 8, 2012 4:34 AM in response to v rex
    Level 1 (0 points)
    Mar 8, 2012 4:34 AM in response to v rex

    I've tried everything, PIN code is disabled, I've replaced the SIM card 3 times and I've restored my phone many times as well as the network settings...

     

    Can you tell me what an Iphone is useful for if you disable 3G.....

     

    Any way, I've also disables 3G and stil have this problem...

  • by KAMiLL,

    KAMiLL KAMiLL Mar 8, 2012 4:41 AM in response to Zakarya
    Level 1 (0 points)
    Mar 8, 2012 4:41 AM in response to Zakarya

    This is nonsense. I think Zakarya won`t be the last where 5.1 didn`t helped...

    Months of wait for nothing!

    Call the service and tell your entire story.

    Shutting of the 3g and back to the iphone 2g functionality...? PLEASEEE

    Fortunately my phone works fine with 5.0.1...

     

    We love you Apple!

  • by remyanz,

    remyanz remyanz Mar 8, 2012 5:00 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Mar 8, 2012 5:00 AM in response to Stuart Mchattie

    I have updated to ios 5.1 this morning and its almost 8 hours already that i haven't got the "no service" error except when i tried to switch from automatic network detection to manual unlike before where-in within 2 minutes after restarting, resetting network settings, the "no service" message come right away. Hopefully this really solved the issue, will monitor tomorrow morning if i will not see the "invalid sim" message. will continue monitoring and will share whatever the outcome is... for 8 hours so far, my iphone worked as it should - a phone, unlike in the past month where it was an expensive ipod touch 4s.

  • by sufiancobra,

    sufiancobra sufiancobra Mar 8, 2012 1:19 PM in response to remyanz
    Level 1 (0 points)
    Mar 8, 2012 1:19 PM in response to remyanz

    As i said and promissed to see the change 2 weeks ago no need to replace your phones just update to ios 5.1 you will get long battery life with 3G off and you will get amazing network with no problems check my old posts 2 weeks ago when i got 5.1 B3 and some guys here keep saying replace the phone it's hardware failure the truth it's not just the ios 5.0.1 had modem driver issue with the phones hardware any ways all problems fixed now enjoy your 4S phones guys .

  • by sufiancobra,

    sufiancobra sufiancobra Mar 8, 2012 1:20 PM in response to Mythul
    Level 1 (0 points)
    Mar 8, 2012 1:20 PM in response to Mythul

    update to ios 5.1

  • by Chris CA,

    Chris CA Chris CA Mar 8, 2012 1:26 PM in response to Zakarya
    Level 9 (79,692 points)
    iTunes
    Mar 8, 2012 1:26 PM in response to Zakarya

    Zakarya wrote:

     

    Can you tell me what an Iphone is useful for if you disable 3G.....

    Same it is useful for with 3G enabled except it will be slower downloading data since it will use EDGE and not 3G.

  • by sufiancobra,

    sufiancobra sufiancobra Mar 8, 2012 1:33 PM in response to sufiancobra
    Level 1 (0 points)
    Mar 8, 2012 1:33 PM in response to sufiancobra

    Almost 3 weeks with ios 5.1B3

    0 invalid sim issues

    0 call drops

    0 network problems

    200% more battery life

     

    and now using the last new 5.1 full version i got the camera shortcut in the locked screen this is the only new change coz i had 5.1b3 since few weeks and all my problems fixed .

     

    here is some tips if you still get the problem after the update to 5.1

    -Don't update your phones from setting system update tab use itunes to backup your phones then download and install the whole new ios 5.1 702mb not only 100mb that you got in phone update then restore your data and everything will be ok.

    here is my battery life print screen image with 3G off and wifi on below

    Untitledn.jpg

  • by v rex,

    v rex v rex Mar 8, 2012 1:39 PM in response to Zakarya
    Level 1 (0 points)
    Mar 8, 2012 1:39 PM in response to Zakarya

    well, ios 5.1 solved some of my problems. i am sorry to see that it didn't solve at least some of yours..

    i have bad reception in my home, and with this update i am now able turn off 3g, and because of that i have at home full bar signal for the first time ever.. when i am at home i turn on wi fi and i'm using my home network for internet connection.. when i go to the city, i turn on 3g and there i have normally good reception..

    as i say some of my problems are solved, but not all- i still have pure battery life. i think, in your case, you should go to apple store and change your device for new one.

  • by Ameerali,

    Ameerali Ameerali Mar 9, 2012 9:09 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Mar 9, 2012 9:09 AM in response to Stuart Mchattie

    Hi everyone,

     

    I had the same issues (no service, battery life issue, invalid sim, network searching etc..). my iPhone 4s was purchased from Saudi Arabia. and i have faced the same issues discussed in the post. last week i hav updated my ios. (5.1) now all of my issues have been solved.

     

    So i advice dont do restore, dnt do change ur sim cards .... just try with new ios 5.1

  • by KenCreative,

    KenCreative KenCreative Mar 12, 2012 3:19 AM in response to Ameerali
    Level 1 (4 points)
    Mar 12, 2012 3:19 AM in response to Ameerali

    Yo!

     

    Threads have gone more quiet after iOS 5.1?

    So, does the 5.1 update really fix the "call failed/call failure/no service/searching"?

     

    I have been waiting, and I've hoped that the iOS 5.1 actually fixed thos issues!

    After the update, I've god two "call failed/call failure/no service/searching"...

     

    So I guess it's hardware fault anyway!

    Have to send it back to Apple, again... to receive my 3rd iPhone 4S.

     

    Apple, we love you!

  • by comtrak,

    comtrak comtrak Mar 12, 2012 3:23 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Mar 12, 2012 3:23 AM in response to Stuart Mchattie

    Well i have updated to 5.1

     

    first i got my phone replaced but i faced the same issue..

     

    Now i have updated the replaced phone with ios 5.1 and facing the same issue.

     

    so no luck for me atleast..

  • by Blowdesign,

    Blowdesign Blowdesign Mar 12, 2012 4:29 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Mar 12, 2012 4:29 AM in response to Stuart Mchattie

    I've received my new iphone (they have replace my old).

     

    Date of manufacture : jan 2012, week 2

     

    It's seems to be better, but still lot of the network sometimes.

     

    Now, i've update the ios to 5.1 and i'll see.

  • by KenCreative,

    KenCreative KenCreative Mar 12, 2012 4:54 AM in response to Blowdesign
    Level 1 (4 points)
    Mar 12, 2012 4:54 AM in response to Blowdesign

    Nice! Good luck dude!

    How/where do you see the "date of manufacture"?

     

    I'm replacing mine today, but as there's no apple store in norway... my vendor have to sendt it to "apple".

    Now, a couple of weeks with a nokia 6110 (best phone ever)

  • by Blowdesign,

    Blowdesign Blowdesign Mar 12, 2012 5:08 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Mar 12, 2012 5:08 AM in response to Stuart Mchattie

    Hi KenCreative,

     

    Here you can find your date of manufacture : http://www.chipmunk.nl/klantenservice/applemodel.html/

     

    Type your serial number and you will have this information and other. Example for my iPhone :

     

    Serial number: .................

    Name: iPhone 4S

    Model: iphone_4S

    Group1: iPhone

    Group2:

    Generation: 6

    ModelCode: iphone_4S

    Machine Model: iPhone4,1

    Model introduced: 2011

    Production year: 2012

    Production week: 2  (January)

    introduced test: GOED

    CPU speed: 800MHz

    Family name: Become a pro user to see this information. (sorry)

    Screen size: 3.5 inch

    Screen resolution: 960x640 pixels

    Colour: Black

    Capacity: 16GB

    Factory: C9 (China)

first Previous Page 65 of 69 last Next