After installing your Roamless eSIM on your device, please configure your Device and eSIM Settings as described below.
1. Turn OFF Data Roaming for your Regular SIM
To avoid accidental data roaming charges by your regular mobile operator, we strongly recommend turning off "data roaming" for your regular SIM card
Go to Device Settings > Cellular > scroll down to SIMs > find your regular SIM card (it will have your phone number underneath) > Click on it
Scroll down to "Data Roaming" > Turn Data Roaming OFF for your regular SIM
Click "Back"
Alternatively:
You can turn your regular (Primary) SIM off completely and only use Roamless eSIM during your travels
Please note that if you turn off your regular SIM card, you won't be able to receive any calls or SMS on your regular phone number
Whatsapp, iMessage, Facetime, Facebook Messenger and other apps will keep working as long as you have mobile data connectivity on your Roamless eSIM or on WiFi
2. Configure your Roamless eSIM Settings
Go to Device Settings > Cellular > scroll down to SIMs > click on Roamless
Turn the Roamless eSIM ON if it's off
Click on Data Mode > select Low Data Mode
Go back to Device Settings
Low Data Mode ensures your Roamless eSIM is not used for iOS background tasks like OS updates, conserving your data usage
3. Select your Roamless eSIM to start using it for data
To start using your Roamless eSIM for cellular/mobile data, you need to configure your device's Cellular Data setting. In other words, you need to tell your device to use the Roamless eSIM for data connectivity.
Go to Device Settings > Cellular > Cellular Data
Select Roamless from the list
You're all set. You device will use your Roamless eSIM for data connectivity as long as Roamless eSIM is selected for Cellular Data.
When you're back home, simply select your Regular SIM for Cellular Data (and turn off your Roamless eSIM until you travel again).
4. (Optional & Recommended) Turn off iCloud Cellular Backup
We strongly recommend turning off Cellular Backup option for iCloud to avoid unexpected, heavy cellular data usage for cloud backups.
Go to Device Settings > Apple Account, iCloud+ > iCloud > iCloud Backup
Turn OFF "Back Up Over Cellular"