How to take screenshot on Xiaomi Mi 6 Plus
Pressing and hold simultaneously for a period of two seconds:
Power On / Off button
Volume Down button
This will now trigger the screenshot on the Xiaomi Mi 6 Plus. You hear this on the basis of a click sounds and a white border around the screen content. If the screenshot with your Xiaomi Mi 6 Plus was successful, then you can now find on your smartphone in the gallery, the image file.