A ScreenShot of the actual settings in use, or view displayed, can be very valuable when troubleshooting.
Many android devices from other manufacturers use these or similar techniques to take ScreenShots.
Samsung Phone (S4 and above with Android 4 or greater):
"Sweep" from left-to-right across the screen with the side of your hand.
Nexus-7 tablet (with Android 5 or greater):
<Press-and-Hold> the "Down Volume Button" and the "Power Button at the same time.
If successful, you'll hear the same camera shutter sound that you hear when taking a photo, and a "pic" icon will appear on the Notifications Bar.
To access and share your screenshots <Tap> on the icon in the Notifications Bar, or go to your photo-storage/viewing app (Gallery, Photos, etc.)