Hi all, I currently own an htc one m9 which i am very happy with however it has suffered some physical damage and the power/lock button is outright dead. I was hoping there was some way of reassigning the volume button to function as a power button without rooting? Or something similar. I currently have it set to double tap to wake it and have an app to lock it. Which is functional but inconvinient however I am scewed should the phone run out of battery. I have looked about the app store to no avail. Any help on this one guys? Thanks.