The Nexus 6 came with a hidden kernel module that allowed for double-tap-to-wake functionality, essentially allowing you turn on your screen on just by tapping it. A simple root app allowed us to activate this feature, which meant we were always two quick taps away from waking our device.
But this feature was hidden for a reason, as it is not without its flaws. When you’re in a phone call, the screen is automatically turned off to prevent accidental button-pressing while you hold your device against your face. But with “DT2W” enabled, a couple of cheek bumps wake the screen again, and all of… more
Sig Nordal 