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iPhone 4S unable to turn off 3G?!

How on earth do you turn off 3G on the iPhone 4S that is really stupid if they actually disabled even if it is to make Siri better

iOS 5

Posted on Oct 14, 2011 6:15 AM

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615 replies

Oct 22, 2011 11:32 PM in response to Ian Goldsmith

L.A. here too. I switch to EDGE to make and receive phone calls. If I do not, calls are garbled and dropped. I literally cannot have phone conversations on 3G. I still have my iPhone 4 and there is a 30 day return policy on the 4s. I will wait until the 29th day to see if there are any software updates for this and battery life. Otherwise, I will be saying bye-bye to Siri and a better camera.

Oct 25, 2011 11:03 AM in response to iceache

After calling Apple Care 3 times, I was just informed by a senior advisor that they will NOT be able to change this feature via an update, since it is hardware related. They said that feauture will no longer be available in new phones unless Apple changes its mind and releases a new model with that feature. As of now, if you own a 4s, you will not be getting that feature.


I am pretty upset about this, becuase it means I have to return my 4s and exchange for a 4. My battery drains rapidly and I can't get a good enough signal to make a phone call in my house.



Oct 25, 2011 1:03 PM in response to tscavetti

Just spoke to support rep who a) had not heard of this issue, but b) mentioned that Sprint and Verizon have moved away from Edge and cannot function without 3G. If true, it would explain why some iPhone 4 users have the option (AT&T) and some do not (other carriers). He also mentioned that the 3GS and 4 both had different hardware for different carriers, but the 4S has one hardware model for all. This might explain why it's off across the board, rather than enabling it per carrier.


I found the tech note interesting, that SMS will still work even with "cellular data" turned off. Perhaps this will be good enough.

Oct 25, 2011 2:31 PM in response to peelmanG4

peelmanG4 wrote:


Not true. Voice and text are sent over the cellular radio, separate from data. This is quite simple to prove. Turn off cellular data. Your phone will still make a voice call and send texts.


ONE radio. That cannot be made clear enough. Your voice data is all digital now. Its being turned into 1s and 0s on the phone, and shipped out over the same network protocols used to relay HTTP requests and iMessages.


While your voice is digitized, that does not mean it is transmitted over 3G; there are different communication paths for voice/text and data. To prove that, on my Verizon iPhone 4 (a CDMA phone) I have the ability to turn off 3G but still make phone calls and send/receive SMS texts. In this mode I can make calls and SMS texts, but I have no data so I have to turn 3G back on to surf the web, send/receive e-mail, or send/receive MMS texts.


Apparently this is not possible with the 4S, but you can still do this on the iPhone 4 even with iOS 5 installed (Settings/ General/ Network/ Cellular Data/ Off), at least you can with the CDMA iPhone 4. Perhaps Apple re-named the setting (I honestly don't recall what it was called before since I never use that feature).

iPhone 4S unable to turn off 3G?!

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