Device Guides
Apple iPhone 4
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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
Turning the key lock on my mobile phone on or off
If you want to avoid accidental key taps, you can lock the phone keys and display.


Choose one of the following options:
Turn key lock on or off, go to 1a.
Select setting for automatic key lock, go to 1b.
To turn on the key lock:
Briefly tap On/Off.
You can answer an incoming call without unlocking the keys.
To turn off the key lock:
Briefly tap On/Off.
You can answer an incoming call without unlocking the keys.
Drag the arrow right.
You can answer an incoming call without unlocking the keys.
Tap Settings.
You can set your mobile phone to lock the keys when it has been idle for a while.
Tap General.
You can set your mobile phone to lock the keys when it has been idle for a while.
Tap Auto-Lock.
You can set your mobile phone to lock the keys when it has been idle for a while.
To turn on automatic key lock:
Tap the required interval.
You can set your mobile phone to lock the keys when it has been idle for a while.
To turn off automatic key lock:
Tap Never.
You can set your mobile phone to lock the keys when it has been idle for a while.
Tap the Home key to return to standby mode.
You can set your mobile phone to lock the keys when it has been idle for a while.