Turning data roaming on my tablet on or off
If you want to avoid using data when you're abroad, you need to turn off data roaming on your tablet. Once done, you can only make voice calls, send SMS and use applications that don't require an internet connection. Remember, you need to turn on mobile data before you can use this function.
1. Find "Mobile networks"
Tap the settings icon.
2. Turn data roaming on or off
Tap OK to confirm.