Unlock smartphone by knocking

In this practical tip, we will show you how to unlock your smartphone display by knocking.

Unlock smartphone by knocking

Android smartphones such as the LG G 2 or HTC One (M8) can be unlocked with a knock code thanks to a knocking gesture. Devices that have not integrated this code can use the following alternative:

• For smartphones with an OLED display there is the "Knockr" app, with which the display can be unlocked by knocking.
• The app can also be used without an OLED display. In this case, however, you have to reckon with an increased battery consumption, since the app switches on the backlight.
• In addition, quick access can be specified. In this way, you can quickly reach important applications such as flashlights or WhatsApp by swiping or tapping.

Note that anyone can easily access your smartphone with this feature. Pin codes or patterns for unlocking are much more secure. We will show you how to add lockscreen widgets in Android 4.4 in another practical tip.