Lenovo TAB4 10 Guide De Démarrage Rapide page 6

Using your device for the first time
You might need to charge the battery before using your device. Insert the charger into the
charging port as shown below.
Connect your tablet to a power outlet using the cable and USB power adapter provided.
Low battery
Turning on/off
Fully charged
Turn on: Press and hold the Power button until the Lenovo logo
appears.
Turn off: Press and hold the Power button for a few seconds,
then tap Power off.
Restart: Press and hold the Power button for about 10 seconds
to restart.
4
Charging