abds2000
Level 1 (1 points)

Q: iPhone 4S "no service" problem

hello all,

 

Just got my iPhone 4S 18hrs ago and it wen to "no service" like 3 times (so far)!!

  • I have changed carrier setting to manual I can select my network but still "no service"
  • I turned on then off "airplane mode" it goes searching... then "no service"
  • it only work when I restart or reinsert the SIM

 

Is this common? do I have to worry ?

 

Appreciate your inputs.

 

Thanks,

Abdullah

iPhone 4S, iOS 5, iMac, iPad

Posted on Oct 22, 2011 11:48 PM

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abds2000

Q: iPhone 4S "no service" problem

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  • by M Ali UAE,

    M Ali UAE M Ali UAE Jan 7, 2012 8:01 AM in response to abds2000
    Level 1 (0 points)
    Jan 7, 2012 8:01 AM in response to abds2000

    I just had a question about my iPhone 4..
    4 days ago, my phone decided to go into no service mode...I was away travelling out of the country.
    i'm using a Du sim in the United Arab Emirates(UAE), and have had absolutely no problems at all for the past 14 months or so, I have even had immaculate signal in underground parking areas.
    needless to say, i was in shock when it went into no signal.
    i researched and researched, and i took the sim card in and out of the phone, reset networks, rebooted, restarted, EVERYTHING!
    and still no signal, just searching.... no signal everytime...NEED HELP in the UAE! My love for this phone is turning into HATE

  • by adalekstolemypants,

    adalekstolemypants adalekstolemypants Jan 7, 2012 4:43 PM in response to abds2000
    Level 1 (0 points)
    Jan 7, 2012 4:43 PM in response to abds2000

    Having this problem too, once again problems with my iphone handset, this will be the last Iphone I have.

  • by spadge007,

    spadge007 spadge007 Jan 9, 2012 8:18 AM in response to abds2000
    Level 1 (0 points)
    Jan 9, 2012 8:18 AM in response to abds2000

    I am experiencing this problem also. I have had my iPhone 4S swapped twice and upgraded to 4A906 and I still get the No Service problem when I am at home which has good reception.

     

    I updated my wife's iPhone 4 to 5.0.1 (9A405) over Christmas and that phone also got the NoService message. I downgraded the phone back to 4.3.3 and the NoService error has not appeared since.

     

    Unfortunately we cant downgrade iPhone 4S to 5.0 as I believe that would fix the problem. I have also tried the latest 5.1 beta 2 build and I still experienced the same problems.

     

    My sim in a Windows phone (HTC HD7) works great (rules out sim card) and if I use a SIM from another network provider I have no problems.

     

    I wonder if it is a network / software problem.

  • by efab,

    efab efab Jan 9, 2012 10:37 AM in response to spadge007
    Level 1 (0 points)
    Jan 9, 2012 10:37 AM in response to spadge007

    hi there,

    i experienced this problem on my 4s, even after the (9A406) was installed by apple.

    so, i switched back to my iphone4 and had a new sim card placed and registered by at&t.

    my iphone 4 now does this issue with 5.0.1 (9A405) software.

    how can i downgrade my iphone 4 back to earlier software like you did for your wife?

     

    thanks.

  • by abzro63,

    abzro63 abzro63 Jan 9, 2012 11:18 PM in response to abds2000
    Level 1 (0 points)
    Jan 9, 2012 11:18 PM in response to abds2000

    I already dumped my iphone  4s it gives me a lot of headaches ( missed phon=

    e call due to no service as well as I missed a lot of my txt msg! so good b=

    ye iphone 4s you just created a lot of puss and hype but for me your a dud!=

  • by spadge007,

    spadge007 spadge007 Jan 10, 2012 1:11 AM in response to efab
    Level 1 (0 points)
    Jan 10, 2012 1:11 AM in response to efab

    iOS 5.1 beta 3 was released by Apple last night for Developers which includes another baseband update. Hopefully this might resolve this annoying problem.

     

    efab: When a new iOS is released the old version is no longer signed by Apple so you cannot simply point iTunes to the ipsw file. If you do you will get an error in iTunes that the version is no longer valid.

     

    You need to save your SHSH blobs which are unique to the phone and iOS version using utilities like iFaith or Tiny Umbrella (|Google them). Without the SHSH files there is nothing you can do.

  • by visweswar.c,

    visweswar.c visweswar.c Jan 10, 2012 2:00 AM in response to alinisar
    Level 1 (0 points)
    Jan 10, 2012 2:00 AM in response to alinisar

    hello i was one of the victim of no service issue

    here in germany i took it to apple store and today after almost 20 days i got a new iphone 4s with 5.0 os

     

    every thing is working fine as of now. still upgrade to 5.0.1 is pending. have to see how my iphone works after an upgrade. hoping everything works well.

     

    update from apple when i asked them is that there is some problem with antenna installed on iphone 4s

  • by spadge007,

    spadge007 spadge007 Jan 10, 2012 2:16 AM in response to visweswar.c
    Level 1 (0 points)
    Jan 10, 2012 2:16 AM in response to visweswar.c

    visweswar.c

     

    Do not do the update to 5.0.1 (5A406) it does not fix the problem. I believe the problem was caused by the 5.0.1 baseband update (1.4.00) which has not been fixed in any public release.

     

    I have just installed 5.1 beta 3 today which includes the latest iPhone 4S baseband update (1.5.01). I will post if the problem is resolved.

  • by alinisar,

    alinisar alinisar Jan 10, 2012 3:04 AM in response to spadge007
    Level 1 (0 points)
    Jan 10, 2012 3:04 AM in response to spadge007

    I plugged in my 4s in i tunes to update but it showed no new updates.?

    How do we download the 5.1 beta 3 as you said?

  • by spadge007,

    spadge007 spadge007 Jan 10, 2012 3:09 AM in response to alinisar
    Level 1 (0 points)
    Jan 10, 2012 3:09 AM in response to alinisar

    To install beta releases your iPhones UDID has to be registered against an Apple Developer account (costs $99 per year). I test internal apps developed by the company I work for so my UDID is registered.

     

    If you install a beta release and apple do not have the UDID registered your phone could become bricked by Apple until the official update is released.

  • by alinisar,

    alinisar alinisar Jan 10, 2012 3:33 AM in response to spadge007
    Level 1 (0 points)
    Jan 10, 2012 3:33 AM in response to spadge007

    That sounds a litlle complicated But what ever it is I sincerely hope and wish it resolves the ordeal we have been goin through. I'd be waiting for your response on this

  • by Thotil,

    Thotil Thotil Jan 10, 2012 4:24 AM in response to abds2000
    Level 1 (0 points)
    Jan 10, 2012 4:24 AM in response to abds2000

    Ive had this problem for almost a week now. Tried a factory reset, switching simcards, downloading a older backup, reset all network settings. Nothing works.

     

    By the way, this is a iphone 4! Seems like the IOS 5.0.1 is the reason for this.

  • by spadge007,

    spadge007 spadge007 Jan 10, 2012 4:36 AM in response to Thotil
    Level 1 (0 points)
    Jan 10, 2012 4:36 AM in response to Thotil

    Check your baseband version, is it 04.11.08 (GSM). I think that is the version installed by iOS 5.0.1 update.

     

    Check by tapping Settings > General > About > Modem Firmware

     

    My Wife's iPhone 4 doesn't display NoService as often but it takes multiple attempts to receive phone calls. The iOS 5.1 beta 3 firmware updates the baseband to 04.12.01 which might fix this problem on the iPhone 4.

     

    I am testing tonight on my 4S and if it works I will try the latest beta on the iPhone 4 also.

  • by Thotil,

    Thotil Thotil Jan 10, 2012 4:54 AM in response to spadge007
    Level 1 (0 points)
    Jan 10, 2012 4:54 AM in response to spadge007

    Modemfirmware: 04.11.08

     

    I Can't revice calls or call out. Probably tried over 100 times these last 7 days.

  • by spadge007,

    spadge007 spadge007 Jan 10, 2012 4:55 AM in response to Thotil
    Level 1 (0 points)
    Jan 10, 2012 4:55 AM in response to Thotil

    Is it in all locations or when you in specific location e.g. home?

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