No 3G or EDGE signal after upgrading to iOS 6

I have the same issue. Steve, if you can see what is happening here, please help us!

Same here.. upgrade the 4s from 5.1.1 to IOS6 yesterday.. was on WiFi at home so did not notice.. and guess what.. no 3G when I walked out this morning

Purchased some iCloud space for a backup and did a restore of the phone (not via iTunes but on the phone) and restored iCloud backup.. but no dice!!

Not happy! I need 3G as this is my work phone.. so will try a restore to 5.1.1 tonight and it better start working again -.-

I also see no indicator of what network one is using until cellular is on and then I see 4G. Turned it off and called home and it worked fine. Appears to be working OK just no indicator.

@Digney

Turned what off? WiFi?

Normally you see either a WiFi signal or a 3G signal (on IOS5.X that is).. not sure with IOS 6 if both are displayed at the same time.. anyhow.. I just see WiFi when on a Wireless Network and nothing else.. when I turn WiFi off, there is no data network as WhatsApp and Email fail to fetch/connect.

@pd_THOR Same here..

In my case I can neither make any calls nor receive/send any data over my cellular network.

Maybe this works for you (did not for me)

1. Backup the iPhone to iCloud (might need to expand the standard 5GB if you have a gazillion pictures)

2. Restore the iPhone from the settings menu

3. Check if 3G now works.. and restore the iCloud backup

When I turn off cellular I have no network indicator but I do show bars and I can make calls.

@all

Just hooked up the iPhone 4S to iTunes and hit the 'restore' option. This will re-download the IOS 6.0 Image from Apple and install it onto the iPhone 4s and remove any remains from the first upgrade (according Apple)

Install went fine without any hickups or errors. Went through the hole process of activating the iPhone and did not (yet) restore the backup and set it up as a new iPhone.

Result: Still NO 3G Signal !!

So either it does not remove everything.. or it is a software issue for certain revisions of the iPhone :-(

BINGO.. found it.

Go to Settings - General - Celular.

1. Turn all OFF

2. Go to SUB menu Cellular Data

3. Select RESET at the bottom of the page

4. Go one menu back and turn 3G and Celular Data ON

Kaboom!! 3G is back!!

Thnx! Had the same problem. You fixed it. 😉

Thanks but I see no reset button and the only way I see Celluar Data sub menu is to turn it on.