Unfortunately many people seem to be having problems with roaming lately and many never get it working at all.
There are many recent threads on this issue.
Some have suggestions that may have worked for some people but many people never got it working.
Unfortunately 48 don't seem to have explained what the problem is or how to fix it.
Anything useful here?
After much troubleshooting, I finally managed to get data working in Poland, and decided to try and document the settings that worked for me in the hope that it may save someone else some stress.
First turn off auto network selection and manually select Orange.
Then set the Network Mode to 3G/2G (auto connect)
Now create a new APN with just 2 settings,
Name: 48 Months
Leave all other settings as they are. I have found that as soon as you set MCC to 272 and MNC to 11 as recommended in the troubleshooting guide this will result in the APN settings not being saved, and your 'saved' entry will just not appear in the list.
These are the main settings, you may have to toggle Aeroplane mode on/off, and I'm not sure if it is also necessary to go to 48 Sim Menu > When Abroad > Network Selection > Manual > International Roaming Profile
I honestly have no idea why things are so difficult when roaming woth 48, a family member is with me on GoMo and everything just worked.... the way it should be.
It really should not be necessary to manually create APN settings every time I go to a new country.
The standard suggestion about the MCC while abroad is obviously nonsense.
MCC is a country code; if you set it to 272 (Ireland) while you are abroad the APN won't be saved/won't work.
The only setting which SHOULD (it doesn't for me at the moment) is the
Add that/Save. End of.