Screenshots
Taking Screenshots
How to take a screenshot on your iPhone, iPad, and iPod touch
You can capture the screen on your iOS device using the Sleep/Wake and Home buttons.
- Press and hold the Sleep/Wake button on the top or side of your device.
- Immediately press and release the Home button.
- To find your screenshot, go to the Photos app > Albums and tap Camera Roll.
excerpt from Apple
How to take a screenshot on your Android phone or tablet
1. To take a screenshot, press and hold the Volume Down and Power buttons at the same time for a few seconds.
2. The screen will flash to signal that the screengrab has been captured and saved into your Gallery, and you will be able to access sharing options.
This method has long been the screenshot process for Samsung's Galaxy S-series, but with the Galaxy S8 no longer featuring a home button you must instead press power and volume down.
Alternative method should the Volume Down and Power buttons don't work
If your phone doesn't have a shortcut built-in, you'll need to use an app like No Root Screenshot It. You'll need to install it on your phone and install its free companion app on your computer, which will enable screenshots. You'll have to plug your phone back into your computer every time you reboot it, but you'll be able to take screenshots directly from your phone which is great.
excerpt from techadvisor, lifehacker