How to take screenshot on HTC Desire 520
Let's start with the standard method available on all Android-powered device. To save the screen shot at the same time press and hold the power button and the Volume Down key.
The device will display the animation will beep and vibration will alert the user that a screenshot of the screen has been successfully created, and in the notification bar will be a special icon that allows you to quickly transfer the resulting image via e-mail, SMS, or post to social services. In addition, the new image will be stored in the local memory of your device and will appear in the gallery in the folder Screenshots.
to make screencapture on HTC Desire 520