14-09-2021 05:06 PM
14-09-2021 06:22 PM - edited 14-09-2021 06:23 PM
Unfortunately you can't...
https://community.48.ie/t5/The-Knowledgebase/The-Roaming-Troubleshooting-Guide/ta-p/52179
"4G services are not available while in the EU/UK however all other service should be made available to you where roaming agreements are in place."