Huawei P8 - How Do I Set the Time for My Screen to Automatically Go to Sleep

12.28 How do I set the time for my screen to automatically
go to sleep?
Go to Settings, touch Display then Sleep, and select a time period.
12.29 Why is my screen sometimes bright and sometimes
dark?

Automatic brightness is turned on.
Go to Settings, touch Display > Brightness and turn off Automatic brightness.
If the problem persists, restart your phone.

The battery is in bad contact with your phone.
Use a rubber to rub the contact points or replace the battery.
If the problem persists, contact Huawei technical support or take your phone to an authorized
Huawei service center.
12.30 How do I set the home screen transition effects?
Touch and hold an empty area on the home screen, touch Transitions, and select an effect.
12.31 How do I add a widget to the home screen?
On the home screen, touch and hold an empty area to enter Widgets. Select a widget you
want to add and drag it to the home screen.