Device Guides
Apple iPhone 4S
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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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Search in Apple iPhone 4S
How to
Choosing a message tone for my mobile phone
Want to change the message tone for your mobile phone? Follow these easy instructions.
Tap Settings.
Tap Sounds.
Tap Text Tone.
Tap the different message tones to listen to them.
Once you've found a message tone you like, tap Sounds.
Tap the Home key to return to the home screen.