I have Samsung galaxy s7 previously on 3.
And it worked great.
However since using ID I have had many problems using it on holiday.
First time was in Malta where I couldn't use data.
When I came home i had a chat online with ID and they gave me settings to change. But said I could only do this while abroad.
Then in USA I couldn't sent or get texts or make calls, data was turned off as it was too expensive there.
So I tried changing the settings but still didn't work. I even got notification that SIM was not allowed. I had to turn phone off and on to get network and tried changing networks to t mobile as advised by I'D but it always referred back to at&t then SIM mot allowed came back
on returning to UK I transferred planes in Amsterdam and it still wouldn't work, there no data.
I have a few trips planned to eurooe in next few months and it's really important that I have data and network.
I appreciate any help.