How to do a Screen Capture by Shortcut Key (LG G3)

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The phone has to be unlocked (display ON) for the shortcut key to capture the screen. To capture the screen into a still image file press and hold the Power key + Volume Down key on the back of the phone for around 2 seconds. The extension of the still image will be PNG (lossless format). The file by default is stored at this path: G3\Internal storage\Pictures\Screenshots\Screenshot_Year-Mo-Da-Hour-Min-Sec.png Width x Height: 1440x2560 Pixels (as the display resolution)