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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How to
Changing the phone lock code for my mobile phone
Want to change the phone lock code for your mobile phone? It's easy, but first you need to turn on the phone lock code before you can change the phone lock code.
Tap Settings.
Tap General.
Tap Passcode Lock.
Tap Change Passcode.


Key in the current phone lock code.
Key in a new phone lock code.
Key in the new phone lock code again.
Tap the Home key to return to standby mode.