Huawei P9 Lite - Manual (Page 13)

Unboxing your Phone
6
If your phone does not respond when you press the power button, this indicates that the
battery is empty. Charge your battery for at least 10 minutes using a genuine Huawei
charger, and then turn on your phone.
Turning your phone on and off
• To turn on your phone, press and hold the power button until your phone vibrates and
the screen turns on.
• To turn off your phone, press and hold the power button, and then touch .
If your phone does not respond after holding down the power button for 20 seconds,
the battery may be empty. If so, connect your phone to a charger to charge the
battery.