Lenovo PHAB2 Pro Guide De Démarrage Rapide page 6

Starting to use your device
You might need to charge the battery before using your device.
Charge the battery as shown.
Connect your device to a power outlet using the cable and USB power adapter
provided.
Turning on/off
Taking screenshots
Press and hold the On/Off button and the Volume down button at the same time.
Turn on: Press and hold the On/Off button until the
Lenovo logo appears.
Turn off: Press and hold the On/Off button for a few
seconds, then tap Power off.
Restart： Press and hold the On/Off button for
about 12 seconds.
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