iPhone 4 Not Joining 3G (e.g. - not going from "E" to 3G when available)

[thehopscotch]

I've had my iPhone 4 since launch day. I keep 3G turned on in the settings 100% of the time.

Recently, I've noticed that my phone won't pick up 3G, even in areas that it has always had 3G in previously. If I switch 3G off and back on, it generally comes on, but that's an annoying step to have to take any time I want to use 3G.

I was recently on a vacation and noticed my phone only displaying "E" again. My mom was with me (and she has also had a 3G since launch day). Her phone was showing 3G...mine still showed E...checked the settings and 3G was enabled.

Obviously I can schedule an appt with Apple...but just wanted to see if anyone around here has experienced anything like this before?

 

[-aggie-]

Have you tried resetting network settings?

 

[Applejuiced]

Or try a restore and then setup as new. Don't restore from backup.

 

[SheepNutz]

I had this problem right when the iPhone 3G came out. It turned out to be a problem with AT&T's network and not the phone, because a few other people from the Cincinnati area started a thread about it here. One of them was able to talk to AT&T and get through to an engineer who was able to fix whatever the issue was. I'd maybe at least try and give AT&T a call just in case it's a network issue.

 

[thehopscotch]

Have you tried resetting network settings?

How do I do this?

 

[narimonk]

How do I do this?

go into settings, the go to General->Reset->Reset Network Settings.

 

[thehopscotch]

go into settings, the go to General->Reset->Reset Network Settings.

Thanks!

 

[thehopscotch]

what os do you use? ios 4? ios 4 don't work well for 3G.

I am using iOS 4 on my iPhone 4.

The 3g I am referring to is the AT&T network...not the iPhone 3G.