How To Use Sleep Mode - HTC One Max
Learn how to use sleep mode on your HTC One Max. Sleepmode saves battery power by putting HTC One max into a low power state while the display is off.
It also stops accidental button presses when HTC One max is in your bag.
Switching to Sleep mode
Briefly press the POWER button to turn off the display and switch to sleepmode. HTC One max also automatically goes into Sleep mode when its left idle for a while. You can change the time before HTC One max sleeps in the Display, gestures & buttons (or Display & buttons) settings.
Waking up from Sleep mode
To wake HTC One max up manually, press the POWER button. If you've set up a lock screen, you need to unlock it.
Note: HTC One max automatically wakes up when you have an incoming call.