One of things that I found enabled when I updated my Windows Phone to 8.1 was the screen ‘wake up’ feature. Basically, this allows you to double tap the screen and it will come to life.
Great idea, but for me it seemed that I was always turning the phone on accidentally. That is no good for optimising the power usage of the device, so after persevering with it for a while I decided that I would prefer to have it off and save the power. If I need the phone, it is easy enough to turn on with my ham-fists.
So here’s how to disable the ‘Wake up’ screen feature as it is buried a few layers down.
From the initial screen navigate to Settings. In my case I have pinned that to the top right of my phone start screen.
Scroll down the option Settings.
Towards the bottom you will find Touch. Select this.
Then set the Wake Up option at the top to Off.
With this set my phone is back to having me turn it on to use which is what I want because I want to maximise the power available to my phone throughout the day.
CIAOPS 