1. From the Start screen, scroll to, then tap the Settings tile.
    device 2639/1280084.jpg
  2. Scroll to, then tap cellular+SIM.
    device 2639/1280086.jpg
  3. Tap the Data connection switch to toggle cellular data on/off.
    device 2639/1280087.jpg
  4. To adjust data roaming settings, tap the Data roaming options field.
    device 2639/1280088.jpg
  5. Tap the desired data roaming setting.
    device 2639/1280089.jpg