I have arrived in France and my data roaming is not working! Switched on in settings

[Annie10]

I have arrived in France. Mobile data is not working although switched on in settings. 

[jonsie · Accepted solution]

Change the APN setting to mobile.o2.co.uk

Save and reboot the phone

[isfaki]

This is not working for me! What’s happening?! 

[Justineotoo]

I too have tried all suggestions. Roaming on 4G off correct apn address (mobile.o2.co.uk), rebooted phone.

I don’t seem to be able to contact 02 directly (no socials). Can’t download o2 app in France. Anybody have any ideas?