To take a screenshot on a Coolpad phone, there are a few different methods depending on the model. One way is to open the notification bar or quick setting bar and press the "Screenshot" icon. Another way is to press the Volume Down and Power keys at the same time for a couple of seconds, and then manage the screenshot from the menu that appears. On the Coolpad Quattro, you can press and hold the Power button and Volume Down button to take a screenshot. After taking the screenshot, it will be automatically saved in the gallery of your phone or tablet.