Most of us don't know many combinations of the keys on our mi phone.|
1. To increase the backlight at any state, press menu button and power up button simultaneously.
2.To take a screenshot, menu and power down
3.to skip swipe screen, back and power up.
4. Long press home button on lock screen, to open torchlight.
5.three presses on the power down button to open camera.
Thanks , hope this helps make life a bit easier for you.
[Tips] Many unknown key combinations.