Open Settings and tap Mobile Service
In Mobile Service option, tap Add eSIM
In Add eSIM option, tap Use QR Code
Use your camera to Scan the QR code
Select the eSIM for Mobile Data and Turn ON Data Roaming
Open Settings and look for Connections
In Connections look for SIM Manager
In SIM Manager tap on Add eSIM
Scan the QR code you received
Select the Mobile Networks and turn ON Data Roaming