LG plans to roll out its recently-announced Knock Code security feature — which enables users to unlock their devices with a customised combination of taps on the screen — to older devices in its ...

The password technique in question is called a knock code. Such codes trace from ancient Greece to turn-of-the-century Russian prisons, in which a series of knocks or taps were equated with various ...

LG has confirmed that it is expanding its Knock Code security feature to more of its smartphones, starting with the flagship LG G2 and curved-screen G Flex in April. The system allows users to unlock ...