Turn off GSM?

Discussion in 'iPhone' started by Nermal, Jan 31, 2012.

  1. Nermal Moderator

    Nermal

    Staff Member

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    Dec 7, 2002
    Location:
    New Zealand
    #1
    Is it possible to turn off GSM on a 4S? My desk phone at work emits a buzzing noise when my iPhone is too close, which never happened with my older HTC or Sony phones. Evidently by default the iPhone will search for GSM networks, despite having a working connection and GSM not being offered by my carrier...
     
  2. Dwalls90 macrumors 601

    Dwalls90

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  3. Nermal thread starter Moderator

    Nermal

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    #3
    Thanks, I can wait for the proper release of 5.1 :)
     
  4. dontwalkhand macrumors 601

    dontwalkhand

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    #4
    Buzzing noise with 2G/EDGE. Doesn't seem to happen on 3G
     
  5. ValerieDurden macrumors 6502a

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    Location:
    Philadelphia, PA, USA
    #5
    Yeah I have never heard a buzz while on 3G only 2G/EDGE.
     
  6. Daveoc64 macrumors 601

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    Jan 16, 2008
    Location:
    Bristol, UK
    #6
    That has an option to disable 3G (UMTS), but not to disable 2G (GSM).

    That would not help in the OP's situation.

    Most other phones have the option to switch between:

    GSM Only
    UMTS Only
    Both

    The iPhone doesn't have that.
     
  7. takeshi74 macrumors 601

    Joined:
    Feb 9, 2011
    #7
    Your carrier is probably using 850 for 2G and a different band for 3G.
     
  8. Nermal thread starter Moderator

    Nermal

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    #8
    Thanks for letting me know, even though it's disappointing. I guess I'll just have to put up with the buzzing (and keep the iPhone further away from my desk phone).

    I have WCDMA (UMTS) at 850 MHz here. A competing carrier has GSM at 900, but I can't connect to that. Still, I wonder why the iPhone is apparently trying to search for a GSM network when it's not required.

    For reference, I'll quote the original post from another forum that led me down this path in the first place. I might actually be going down the wrong track!

     
  9. Nermal, Mar 8, 2012
    Last edited: Dec 5, 2012

    Nermal thread starter Moderator

    Nermal

    Staff Member

    Joined:
    Dec 7, 2002
    Location:
    New Zealand
    #9
    I haven't heard this noise since updating to 5.1. It was intermittent but it looks like it may have been fixed :)

    Edit: It's not fixed. I've had it intermittently for the past year or so but today it was bad enough (due to fog?) that I decided to try hunting down a fix again and came across this thread.
     

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