I have no service abroad

[karen123]

I have no service abroad I have just changed tarrif to international?

[madasaf1sh]

@karen123 

Check Mobile Data roaming is on

Try another network from the network selection menu

Check Date and Time

Step Down to 4G 

How do you mean you changed your tariff to International?? 

[MI5]

@karen123 

Some things to try:
Check data roaming is on in phone settings.
Manually search for another network
Turn off 5g
Change your data APN to "mobile.o2.co.uk"
Check with O2 whether you have a roaming bar on your account. Do this via social media
If you message O2 on Facebook ( https://o2uk.co/O2CFB) , Twitter ( https://o2uk.co/O2CTW) or Instagram ( https://o2uk.co/O2CIG) , they should be able to help.