How To Take A Screenshot or Screen Capture With The Sony Ericsson Xperia Arc:
Unfortunately, the Sony Ericsson Xperia Arc cannot natively take screenshots 
However, users can root the device or install the Android SDK to take screenshots. There are many guides out there to achieve this, but be careful!
How To Take A Screenshot or Screen Capture With the Huawei MediaPad To Take A Screenshot or Screen Capture With the Huawei MediaPad simply: Press the SCREENSHOT icon on the bar at the bottom of your screen. It is the icon next to RECENT APPS....
How To Take A Screenshot or Screen Capture With The Huawei Honor 3X To take a screenshot or screen capture with the Huawei Honor 3X: Swipe down from the top of the screen and press ‘Screeenshot’ Alternatively, hold down the POWER button and the VOLUME DOWN button....
How To Take A Screenshot or Screen Capture With The Motorola Moto G To take a screenshot or screen capture with the Motorola Moto G, simply: Hold down the POWER and VOLUME DOWN key at the same time. You will hear a shutter sound if the screenshot has been taken successfully. The screenshot will appear … Continue reading Motorola Moto G...
How To Take A Screenshot or Screen Capture With The Samsung Galaxy Note 4 To take a screenshot or screen capture with the Samsung Galaxy Note 4 Press and hold the HOME and POWER buttons at the same time....