I updated Vodafone purchased S3 to UK 4.1.2 in fear of the phone dying. I haven't rooted the phone at all, and I don't plan to. It was previously on Polish 4.1.2 which was working well.
I was on Wifi most of the weekend - so did not notice any ill effect.
Today was in Grafton / Domain area - when I was on 3G signal, most of the time data did not work, and I couldn't dial a call either. When it switches it self to H or H+ signal on the phone, everything works as usual.
I am now back home on the shore, and it works fine but I am on H or H+ most of the time here.
Was there a problem with network in Auckland city / Grafton area today?
My colleagues iphone 4s worked fine.
Or should I roll back to Polish rom?