No 3G or EDGE signal after upgrading to iOS 6

Haagse Harry wrote:

Becky, I hope you haven't restored yet... if you haven't maybe you should document all your 3G network settings like APN etc before restoring.

keeping my fingers x-ed for ya!

*cough.. erm of course I thought to do that... *blushes.

No I didn't but good advice. 😊

It did work, but cocked messed up when I installed my backup..

Im too tired and cranky to try again now.. I have gone through my previous instructions again and have the phone working - albeit without all my precious data on... :/

Neither my carrier nor Apple staff have apparently heard of this issue. I have asked them both to pass on that there are people all over forums.. including Apples own that have the same issue... But I wont hold my breath. :/

Thanks Haagse Harry. 🙂

LOL! ...hohum... now that ***** bigtime is quite unfortunate indeed...

Speaking from experience, a manual restore punching in 200+ contacts by hand is a major pain. Unless our friends at Apple find a solution you might want to google for some tooling that allows you to crack open your backup file or some other geeky method to access the content of your backup. Of course that's highly unsupported and warranty lasts as long as I'm typing this sentence, but it could be the savior at the end of the rope.

Good luck!

The issue seens to be addressed and mistery-solved by Apple.

I did the following steps and my 3G is back to normal, confirmed by a 20hrs normal usage:

(The trick was using iTunes to activation)

1. Plug phone via USB into iTunes

2. Change the backup mechanism to Local Computer, instead iCloud

3. Backup the phone on iTunes (just in case everithing fails)

2. Go to C:\Users\[user]\AppData\Roaming\Apple Computer\iTunes\iPhone Software Updates (Windows) or /Users/[user]/Library/iTunes/iPhone Software Updates (Mac) and delete all .ipsw files

3. Ask iTunes for a iPhone Restoration clicking on Restore button

4. Wait for new .ipsw file be downloaded through iTunes (it can take several minutes)

5. Let iTunes restore all software on iPhone (will install latest iOS version - 6.0)

(Here was the trick thing)

6. Just after iTunes notification for iPhone be reboted, unplug iPhone from computer, then, wait for Welcome just a couple of minutes to plug it again

7. Wait for welcome screen on iPhone, and do nothing.

8. When iTunes detect the iPhone, will prompt to configure as new iPhone or restore backup - do nothing again

9. At this point You will see Welcome Screen on iPhone auto-changing language and country location (I think the magic ocourred here. Something must be configured on APN or Baseband by iTunes at this point)

10. When iPhone reachs the Select WiFi Network screen just unplug it from iTunes and proceed with normal configuration using 3G (at this point my 3G was detected and was on full signal)

11. Finish the entire iPhone configuration (skip backup restoration from iCloud and iTunes)

I did this on both my iPhone and from a friend of mine and now 3G is working well. Maybe the activation throught iTunes, after a entire iOS 6 launch week, has provided some updated information and then there is no issues anymore.

Something that only just Apple can answer.

me too .

FYI folks, I just upgraded to iOS 6.0.1 and it did the same thing: change the 3 APN settings to wrong ones. After correcting it with the right ones for my provider everything works as usual.

Curious to experience some improvements now.... ;-)

Bastardadmin's solution worked for me. Thanks a million. Surely Apple should be aware of such things and provide instructions with the update.