We would love to compile a list of working carriers in the EU and UK. Please reply on this thread with your country, carrier name, and any special setting that you had to enable to get everything working.
I use in Germany blau-o2-de (Telefonica, old E - Net) and Wodafone.de with G2 and G4
In the UK, I use giffgaff, an MVNO hosted on O2. I had to create an Access Point Name with parameters as follows:
I think that all other parameters were left as default. I don’t use MMS.
In Spain, for MVNO Parlem, on MasMovil net, I’ve had to configure APN as follows:
APN type: default,supl
4G calling is activated.
je suis chez Orange en France