By scanning the QR code
Go to Settings on your device
Tap on Network & Internet
Tap the Add or + icon next to Mobile Network
Tap Next when asked, “Don’t have a SIM card?”
Scan your QR code and add the confirmation code if prompted
Go back to your “Install eSIM/Access Data” screen.
Turn on eSIM under Mobile Network
Enable Mobile Data
Enable Data Roaming (Please turn off your primary line to avoid roaming charges from your carrier provider when overseas)
Go to Network & Internet and tap on the Mobile network to set the correct network preferences listed in the Additional Info which is at the bottom-right of the selected data package page.