Sleep mode

Sleep mode saves battery power by putting HTC One A9s into a low power state while the display is off. It also stops accidental button presses when HTC One A9s is in your bag.

Switching to Sleep mode

To turn off the display and switch to Sleep mode, briefly press the POWER button.

HTC One A9s also automatically goes into Sleep mode when it’s left idle for a while. You can change the time before HTC One A9s sleeps by setting the screen timeout. For details, see Setting when to turn off the screen.

Waking up from Sleep mode

Press the POWER button.