How To Take A Screenshot With The Motorola Motoluxe
Unfortunately, the Motorola Motoluxe cannot natively take screenshots 
However, users can root the device to take screenshots. There are many guides out there to achieve this, but be careful!
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How To Take A Screenshot or Screen Capture With The HTC Desire 826 To take a screenshot or screen capture with the HTC Desire 826: Hold down the POWER button and the VOLUME DOWN button at the same time....
How To Take A Screenshot or Screen Capture With The Nexus 5S To take a screenshot or screen capture with the Nexus 5S Press and hold the VOLUME DOWN and POWER buttons at the same time....