How to activate Data Roaming?

On an Android device, take the following steps:

1. Tap Settings, then choose Connections;
2. Select Mobile Networks;
3. Tap the switch to activate or deactivate Data Roaming.

For iOS users:

1. Tap on Settings > Cellular (or Mobile Data, depending on the country);
2. Under Cellular Data Options, toggle Data Roaming into the on position.