on 15-01-2024 20:23
15-01-2024 20:28 - edited 15-01-2024 20:30
15-01-2024 20:28 - edited 15-01-2024 20:30
Not much info to go on to help you, but 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.
If you're PAYG you'll need to set your phone to 2g only for calls as many countries have shut down 3g and PAYG doesn't support 4g calling.