How to force iPhone 4 (GSM) into GSM mode for voice instead of WCDMA?

**kocoman** · 07-08-2012, 05:37 AM

How to force iphone 4 (GSM) into GSM mode for voice instead of WCDMA?

thanks

**eastercat** · 07-08-2012, 07:12 PM

Get a gevey sim
Place gevey with gsm sim in slot
Follow instructions

**RF9** · 07-08-2012, 11:36 PM

On an iPhone 4 (or earlier iphone), go in to Settings>General>Network and turn of 3G.
That will disable WCDMA and all calls and data go over GSM.
This won't work on an iPhone 4S as the option has been removed presumably because of a limitation of the radio.

**Howmander** · 07-09-2012, 12:15 AM

Originally Posted by RF9

On an iPhone 4 (or earlier iphone), go in to Settings>General>Network and turn of 3G.
That will disable WCDMA and all calls and data go over GSM.
This won't work on an iPhone 4S as the option has been removed presumably because of a limitation of the radio.

Actually it has been put back in the iphone 4S as of iOS 5.1 or 5.1.1 or something, I don't know when, but if you are updating your software, you should have the option again.

Name: photo.PNG
Views: 1171
Size: 170.0 KB

Name: photo.PNG
Views: 1171
Size: 170.0 KB

**Doolie** · 07-09-2012, 12:49 AM

Originally Posted by Howmander

Actually it has been put back in the iphone 4S as of iOS 5.1 or 5.1.1 or something, I don't know when, but if you are updating your software, you should have the option again.

Name: photo.PNG
Views: 1171
Size: 170.0 KB

Not the iPhone 4s with AT&T. Toggle is not present.

**RF9** · 07-09-2012, 03:13 AM

Confirmed, it is not on the iPhone 4S with AT&T. It was removed from the iPhone 4 with iOS5, but returned with a later update. However iPhone 4S never had it (on AT&T at least.) 4S remains the only one that doesn't have it as far as I know.

**Doolie** · 07-09-2012, 09:29 AM

Originally Posted by RF9

Confirmed, it is not on the iPhone 4S with AT&T. It was removed from the iPhone 4 with iOS5, but returned with a later update. However iPhone 4S never had it (on AT&T at least.) 4S remains the only one that doesn't have it as far as I know.

Nope, the AT&T iPhone 4 has always had the toggle, even with iOS 5. The AT&T iPhone 4s has never had the toggle.

**quagmire** · 07-09-2012, 10:59 AM

I suspect RF9 is thinking of Field Test Mode, which was removed, restored in part, and then restored in full.

**NHCharmedOne** · 07-09-2012, 11:45 AM

I have the 4s on VM with 5.1.1 and no optionto turn off 3g

**Howmander** · 07-09-2012, 12:12 PM

Wow, so I guess Canada wins again: No charge for tethering, we got unlocked iPhones direct from Apple first and our 4S' get the ability to turn off 3G! ;-) I remember when we used to be the more locked down version of the American's phones and devices, now it looks like things are swinging the other way, FINALLY.

**mandrsn1** · 07-09-2012, 01:03 PM

Why would you want to do that? AT&T is actively reducing the amount of spectrum reserved for 2G use to open up more 3G. Your call reliability will likely be much worse if you keep it in 2G mode.

**Doolie** · 07-09-2012, 05:29 PM

Originally Posted by NHCharmedOne

I have the 4s on VM with 5.1.1 and no optionto turn off 3g

This is a GSM thing. CDMA iPhones don't have one at all.

**NHCharmedOne** · 07-09-2012, 07:59 PM

Originally Posted by Doolie

This is a GSM thing. CDMA iPhones don't have one at all.

Lmao I realized that after I posted, but it wouldnt let me delete from ipad.

**cloudstrife1ph** · 07-09-2012, 08:53 PM

U.S. Carriers seems to love removing the option to choose the "G" from their phones lately. Some but not yet all. Probably to emphasize 4g be it the real 4g or just hspa that is sugar coated for marketing reasons...

**cloudstrife1ph** · 07-09-2012, 08:56 PM

Originally Posted by mandrsn1

Why would you want to do that? AT&T is actively reducing the amount of spectrum reserved for 2G use to open up more 3G. Your call reliability will likely be much worse if you keep it in 2G mode.

2g is still more battery friendly than the vampires 3g and 4g...:|