Share your experience!
I'm not sure if swapping cards will help you, but I think it's Android stuff. I got those messages on other phones too. I think it would be better if this was "Warning: Data roaming is ON" - then it would mean something. Warning that it may ruin your wallet. And counter, how much data was transferred up/down in roaming only.
I have the same problem and I've had it with my previous Sony smartphone as well. I don't think it has anything to do with the operator. This is a bug in Sony or perhaps Android soft- or hardware and it needs to be fixed as soon as possible because it anoys the **bleep** out of me!
Any updates on this? Is this somehow being reported to the developers?
I'm using the z1, and get the same notfication every 10 seconds, and have no internet as it won't connect, any ideas?
Hi!
I jump right off in this discussion 
o2 + E-Plus are together since some time. Just activate Roaming, because your Mobile Phone wants to Jump in two Operator.
Normally this isnt neccessary, can you ask your operator to send you new configuration APN ?