To ensure smooth data usage when abroad,
1. Switch off airplane mode when you have reached your destination.
2. Enable Data Roaming on your phone via mobile data settings.
3. Manually connect to the designated network on your mobile phone depending on your destination.
4. Next, turn Airplane mode to “On” and then “Off'”
For Android, go to your device, select Settings > Connections > Mobile networks > Data Roaming.
For iOS, go to your device, select Settings > Mobile Data > Mobile Data Options.