HUAWEI P8 Lite Hard Reset To Remove Screen Pattern Lock

Now Press and hold together the Volume Up + Power button for a couple of seconds.
Select using Volume buttons option "wipe data/factory reset", and confirm that withPower button.
Once more choose "wipe data/factory reset" from the menu, and accept it with Power key.
In the next step accept option "reboot system now" using Power button.
Good Job! You have done well.