Pretty sure my iPhone 6 was loaded with iOS 8 and I then updated directly to iOS 8.1. All of the issues I've had with the phone (and there are quite a few but none are too annoying) have been since I updated it to 8.1. I'd be happy if I could get to the bottom of the 2G/3G/4G toggle, which is ongoing in another couple of threads. 😞
I think the O2 social media team's last response here (about the 2G/3G/4G toggle), was that it's an Apple thing and O2 can't change it by way of a carrier settings update (?). That's certainly how they've resonded to me via Twitter (twice).
Have they said that they'll look into it further?
I asked @Chris_K via flagging him to look into what Apple said to me. I posted the transcript of the Apple reps conversation with me.
Yeah, I know...I'm a part of that thread too. Since you posted that transcript (which was good thinking, btw), nobody from the O2 social media team has posted anything in that thread. Have they (or ChrisK himself) contacted you directly to say that it's being looked into?