iPhone 4S, cannot turn off 3G?

Discussion in 'iPhone' started by PracticalMac, Mar 7, 2012.

  1. PracticalMac macrumors 68030

    PracticalMac

    Joined:
    Jan 22, 2009
    Location:
    Houston, TX
    #1
    I noted my friends 4S cannot turn off 3G service like I can on my 4.

    I turn off the 3G to save power and limit Cellular data between traveling to WiFi spots.
     
  2. Gav2k macrumors G3

    Gav2k

    Joined:
    Jul 24, 2009
    #2
    Wirelessly posted (iPhone 4s: Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

    Wait for ios 5.1
     
  3. mrquin27 macrumors newbie

    Joined:
    Mar 5, 2012
    #3
    I believe this also depends on if you're GSM or CDMA
     
  4. hasek3139 macrumors 6502

    Joined:
    Mar 4, 2009
    #4
    i have a 4s on att all i do is setting > general> network>and turn cellular data off
     
  5. ap3604 macrumors 68000

    Joined:
    Jan 11, 2011
    #5
    That doesn't turn off the 3G radio (your still using 3G to make phone calls)... that simply turns off the ability to get data.
     
  6. cyks macrumors 68020

    cyks

    Joined:
    Jul 24, 2002
    Location:
    Westchester County, NY
    #6
    Turning off cellular data and turning off 3G are not the same thing.

    If your phone is in a spotty 3G area (and you don't need cellular data), it's generally better to turn off 3G and use EDGE for talking... that way your phone doesn't blow through the battery constantly trying to find and connect with 3G.

    Hopefully today's iOS 5.1 update will bring that option back (as well as fix battery issues and a few other things).
     
  7. Daveoc64 macrumors 601

    Joined:
    Jan 16, 2008
    Location:
    Bristol, UK
    #7
    Here's a rant of mine from a while ago to help clear up the confusion:

    3G is not the same as data
    2G is not the same as "EDGE"

    3G UMTS networks can provide the ability to handle calls, SMS and data.
    2G GSM networks can provide the ability to handle calls, SMS and data.

    Turning off 3G will not turn off data access on your phone.

    If your carrier allows you to connect to a 2G GSM network that offers data services through GPRS or EDGE, then you'll still be able to connect to the internet when the "Enable 3G" switch is toggled to off

    Some carriers don't support EDGE at all and most don't have EDGE coverage across their entire 2G network.

    iOS 5.0 and 5.0.1 do not support the 3G switch on the iPhone 4S only. The switch is re-enabled in iOS 5.1 which is being released today.
     
  8. wymi macrumors regular

    Joined:
    Jan 14, 2012
    #8
    5.1 is being released today? Will that 3g switch function be enabled for both GSM & CDMA carriers?
     
  9. Daveoc64 macrumors 601

    Joined:
    Jan 16, 2008
    Location:
    Bristol, UK
    #9
    I'm not 100% sure about the "CDMA" phones, but I heard that disabling 3G on a CDMA iPhone will pretty much leave you with no coverage.

    As for "GSM" iPhones, you'll see the Enable 3G toggle if your carrier allows it.
     
  10. lordofthereef macrumors G4

    lordofthereef

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    Nov 29, 2011
    Location:
    Boston, MA
  11. wymi macrumors regular

    Joined:
    Jan 14, 2012
    #11
    Thanks, I know. I was trying to put my many years of phone hacking behind me when I got the 4s. The hacker in me really wants control over 3g on the VZW network.
     
  12. lordofthereef macrumors G4

    lordofthereef

    Joined:
    Nov 29, 2011
    Location:
    Boston, MA
    #13
    If you are wanting to run stock, my understanding is that 5.1 has this feature, and it should be available today. Personally I am staying far away to preserve my jailbreak. :)
     
  13. ap3604 macrumors 68000

    Joined:
    Jan 11, 2011
    #14
    Apparently if your on ATT then Apple disabled this feature from the 5.1 update to keep us from having this option...
     
  14. Zimmy68 macrumors 65816

    Zimmy68

    Joined:
    Jul 23, 2008
    #15
    Yep, this was the first thing I checked and no 3G toggle still on my 4S.
     
  15. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #16
    Even if you were JB you canot turn off 3G on a CDMA 4S.
    Option works fine on GSM iphone 4S models but if you try on a Verizon or Sprint 4S it crashes and causes problems.
    I think its part of the network chip used that you cannot just disable EVDO use.
     
  16. lordofthereef macrumors G4

    lordofthereef

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    Nov 29, 2011
    Location:
    Boston, MA
    #17
    Really? That's... weird... wonder why?
     
  17. ap3604 macrumors 68000

    Joined:
    Jan 11, 2011
    #18
    Only reason I could guess is because ATT eventually (years from now) will shut down the 2G network to use for LTE...

    ... but in the meantime AT&T customers who don't currently get 3G at their house now have to let their batteries drain while their phones constantly search for a 3G signal that isn't there :(

    All the while non-ATT iPhone 4S users get the option to save their battery life...
     
  18. iostehk macrumors member

    iostehk

    Joined:
    May 12, 2011
    Location:
    Atlanta
    #19
    It's Siri

    4s users cant turn off AT&T 3G because siri is installed with the os it performs poorly on edge :apple:
     
  19. PracticalMac thread starter macrumors 68030

    PracticalMac

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    Jan 22, 2009
    Location:
    Houston, TX
    #20
    Not much choice if they are in a no/weak 3G zone.
     
  20. Daveoc64 macrumors 601

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    Jan 16, 2008
    Location:
    Bristol, UK
    #21
    Rubbish.

    iPhone 4S users on other carriers can disable 3G.
     
  21. ap3604 macrumors 68000

    Joined:
    Jan 11, 2011
    #22
    Not true.

    I had my 4S jailbroken, turned off 3G with SBSettings, and Siri still worked perfectly fine over 2G Edge...
     
  22. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #23
    Siri works fine on Edge.
    Good try though:)
     
  23. carl32 macrumors newbie

    Joined:
    Mar 15, 2012
    #24
    I want to turn 3G and mobile data off to restrict data to wifi when i am at home on the orange uk network. When i switch my iphone 4S off then back on 3G enables itself automatically again for some reason. Is there a way round this ?
     
  24. cynics macrumors G3

    Joined:
    Jan 8, 2012
    #25
    I don't have AT&T so I can't comment on edge but I found if I don't have 3G Siri function is very poor. I notice it while texting i get the three circles but they just disappear and what I said doesn't show up.
     

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