How To Take A Screenshot With The iPhone 6
To take a screenshot or screen capture on the iPhone 3G, iPhone 4, iPhone 4G, iPhone 5, iPhone 6 or iPad, simply:
Hold down the HOME button and the POWER button. The HOME button is on the front of the device at the bottom, the POWER button is at the top of the device.
The screen will flash and the device will make the camera sound.
The image should appear in the CAMERA ROLL.