Sony V600 - Manual (Page 129)

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129
7.8 Keypad lock
You can lock the keypad to avoid dialling a number by accident.
Note:
Calls to the international emergency number 112 can still be made, even when the
keypad is locked.
Automatic keylock
In standby, automatic keylock means the keypad is locked a short while after you last
press a key.
To set the automatic keylock
} Settings } the General tab } Locks } Automatic keylock.
To lock the keypad manually
In standby press
} Lock keys.
You can still answer an incoming call and the keypad locks again after the call.
The keypad remains locked until you unlock it manually.
To unlock the keypad, press
} Unlock.