Device Guides

Apple iPhone 4

iOS5

iOS4

iOS is the operating system software installed on your iPhone. To find out which version you have: Tap Settings, Tap General, Tap About, and view the version number.

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How to

Turning data roaming on my mobile phone on or off

If you want to avoid using data when you're abroad, you need to turn off data roaming on your mobile phone. Once done, you can only make voice calls, send SMS and use applications that don't require an internet connection.

Tap Settings.

Tap General.

Tap Network.

Tap the indicator next to Data Roaming.
Depending on the current setting, the function is turned on or off.

Tap the Home key to return to standby mode.

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