Se apaga la pantalla y bloquear el dispositivo sin necesidad de utilizar el botón físico.
Turns off the screen and lock the device without using the physical key.
It work without ROOT permission.
Very light.
ACTIVATION
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Once you install the application to enable it just go on the Android settings as follows:
1) Settings \ Security \ Administrators Device
2) Select the app "Screen Off" and press the ACTIVE button
OFF AND UNISTALL
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In order to uninstall the application, proceed as follows from the Android settings menu:
1) Settings \ Security \ Administrators Device
2) Select the app "Screen Off" and press the DISACTIVE button
3) Remove application (as per standard procedure ....)