Your phone has a power button broken? Using the application Power Button Master you can lock the screen and turn off the phone using volume or camera button.

The Power Button Master does not collect or send any data. Does not consume battery power.

For the Power Button Master to work you need to enable the accessibility service and activate the device administrator - two simple steps described on the start screen.

The Power Button Master does not allow you to turn on the device using the volume button because there is no normal way to do this. Only suitable for devices that can be turned on using the home button.

The application needs to enable the accessibility service to listen to the volume buttons and activate the device administrator to lock the screen:
1. Touch the first switch on the application screen find the Power Button Master in the list and turn it on.
2. Return to the application and activate the device administrator Power Button Master in the same way.
You can also select a button to lock the screen: volume down or volume up or camera button (if available).
Switch on full replacement mode to disable the normal function of the button.