Huawei P9 Lite User Guide

							Power Management 
154
Preventing background applications from 
accessing the Internet
Use the networked applications manager to prevent certain applications from connecting 
to the Internet and using your data allowance.
1 Open Phone Manager.
2 Touch Traffic manager > Networked apps.
3 Switch between the Installed apps and System apps tabs to configure the Internet 
access permissions for individual applications. Touch 
to configure which 
applications have Internet access while roaming.
If you disable Internet access for an application, you will be asked if you want to enable 
Internet access next time you open it.
Configuring display and sound settings
Reduce power consumption by optimizing the display and sound settings on your phone.
See Configuring the display settings to learn how to save power by disabling Daydream, 
turning off the indicator light, and reducing the screen brightness and screen-off time.
See Sound settings to learn how to save power by disabling unnecessary sound or 
vibration alerts. 
						

							Phone Manager 
155
Phone Manager
Optimizing your system
Use Phone Manager to make your phone run faster and optimize performance.
Conducting a comprehensive scan
Open Phone Manager. Your phone will automatically conduct a comprehensive scan 
and optimize your system.
Cleaning up your phone
1 Open Phone Manager.
2 Touch System optimization to scan for and clear cached application data and system 
trash.
 Follow the onscreen instructions to manually clear files or configure the settings.
3 Once the data has been cleared, touch Finish.
Managing data usage
Phone Manager comes with a data management feature that you can use to monitor data 
usage and avoid exceeding your monthly allowance.
Open Phone Manager and then touch Traffic manager. You can view detailed data 
usage statistics or configure the following settings:
• Traffic use ranking: View per-application data usage.
• Networked apps: Manage Internet access permissions for applications. Close 
unnecessary background applications that connect to the Internet to reduce data 
usage and power consumption. For more information, see 
Preventing background 
applications from accessing the Internet.
• Portable Wi-Fi hotspot: Configure the settings for a mobile hotspot or mobile network 
connection. 
						

							Phone Manager 
156
Harassment filter
Phone Manager features a harassment filter and notification center to block spam calls 
and messages and unwanted push notifications.
Open Phone Manager. You can:
• Touch Harassment filter >  and follow the onscreen instructions to configure a 
call blacklist or whitelist, keywords, and spam settings.
• Touch Notification center and select an application to configure its notification 
permissions and settings.
Battery management
Phone Manager comes with a battery management feature to help you save power and 
prevent you from missing important calls and messages.
Open Phone Manager and then touch Battery manager. You can:
• View detailed battery usage statistics. For more information, see Viewing battery 
usage statistics.
• Optimize battery use to reduce power consumption, For more information, see 
Reducing power consumption.
• Select a suitable power plan. 
						

							Tools
157
Tools
Calendar
Calendar helps you to plan your daily schedule. For example, it helps you to plan ahead 
and displays information about public holidays. If you have saved your contacts 
birthdays, Calendar will automatically create birthday reminders.
Adding and deleting events
Add events and set reminders to help you plan ahead.
• Add an event: Open Calendar, touch , and then enter the name, start and 
end time, and location of the event. Touch to save the event. If you add a 
reminder, your phone will send you a reminder at the preset time.
• Delete an event: Go to the event that you want to delete, and then touch .
Event
Selected day
Events on selected day
More settings Toggle between month, week, and day view
Go to today
Today
Week number
Add event 
						

							Tools
158
Viewing the calendar
Open Calendar. You can:
• Switch to month, week, or day view: Touch Month, Week, or Day. When in month, 
week, or day view, swipe left or right to change the month, week, or day that is 
displayed.
• View week number: Touch  > Settings, and then turn on the Show week number 
switch to display the week number on the left of the calendar.
• Change first day of the week: Touch  > Settings > Week starts on, and then 
select a day.
• Switch to a different calendar: Make sure that you are connected to the Internet, 
and then touch 
 > Calendars to display. Touch Local calendar and select the 
desired calendar.
 For more information on connecting to the Internet, see Accessing the Internet.
• Automatically import contacts birthdays: Touch  > Calendars to display, and 
then turn on the Contacts\ birthdays switch. Your phone will automatically import 
your contacts birthdays and create birthday reminders.
Viewing global holidays
Enable the global holidays option to help you plan your next business trip or holiday.
 This feature requires Internet access. For more information, see Accessing the 
Internet.
1 Open Calendar.
2 Touch  > Calendars to display > Global holidays.
3 Turn on the switch next to the country whose holidays you want to view. Your phone 
will automatically download the countrys holiday information.
Synchronizing a calendar
Sync your calendar with your account for easy access wherever you are. 
						

							Tools
159
1 Open Calendar.
2 Touch  > Calendars to display.
3 Select the account whose calendar you want to display.
4 Touch  > Calendars to sync.
5 Select the desired account, and then log in to your Exchange account to sync the 
calendar.
Clock
In the Clock application, you can add alarms, view world times and public holiday dates, 
and use the stopwatch and timer features.
Managing alarms
Open Clock. In the Alarm tab, you can:
• Add an alarm: Touch and set the alarm time, ringtone, repetitions, and more. 
Touch to apply.
• Enable or disable an alarm: Touch the switch next to an alarm.
• Configure the alarm settings: Touch to configure the snooze duration, silent 
mode settings, and volume button behavior.
• Delete an alarm: Touch and hold the alarm you want to delete, and then touch .
• Turn off an alarm: Touch Sliding shut down at the bottom of the lock screen.
• Mute an alarm: Press the volume down button.
• Snooze for 10 minutes: Press the power button. The alarm will go off again after 10 
minutes. Swipe down on the screen to open the notification panel and touch the alarm 
notification to turn off the alarm.
• Enable alarm when phone is powered off: Select Keep alarm active, will ring in %s 
when you turn off your phone. Alarms will still go off after your phone turns off. 
						

							Tools
160
World clock
Add multiple clocks to view the time in various cities around the world.
Open Clock. In the World clock tab, you can:
• Add a city: Touch . Enter a city name or select a city from the list.
• Set the home time zone: Touch , turn on the Display home clock switch, and 
then touch Home time zone.
• Set the system date and time: Touch  > Date & time.
• Delete a city: Touch Edit cities. Touch the icon next to the city you want to 
delete, and then touch .
Dual clock display
Your phone displays the network time by default. Turn on dual clocks to display the local 
time and home time on the lock screen.
Touch  > Date & time > Dual clocks and then turn on the Dual clocks switch. Touch 
Set home city, and then select your home time zone from the list of cities.
Set date, time, and home time zoneCurrent network timeDelete cities
World clock Home time
Add city 
						

							Tools
161
 Only one clock is displayed when the local time zone is the same as the home time 
zone.
Stopwatch
1 Open Clock.
2 Under Stopwatch, touch to start timing.
 
While timing, touch  to count laps. Swipe up on the timer in the middle of the 
screen to view your lap data.
3 Touch to pause the stopwatch.
4 Touch to resume the stopwatch, or touch to clear the stopwatch records.
Current time zoneHome time zone 
						

							Tools
162
Timer
1 Open Clock.
2 Under Timer, turn the wheel to set the countdown time.
 
Touch  to set a ringtone for the timer.
3 Touch to start the timer.
4 When the timer goes off, swipe the screen to silence the ringtone.
 
When the timer is counting down, touch  to reset the timer, or touch  to 
pause the countdown.
Weather
Weather allows you to check the current weather and multi-day forecast for your location 
and many other destinations around the world.
Viewing weather information
Open Weather. You can:
• View detailed weather information: Swipe up on the screen to view the weather 
forecast for the next 24 hours, chance of rainfall, air quality, comfort index, wind 
speed and direction, and sunrise/sunset times.
• View weather for other cities: Swipe left or right on the screen to view the weather 
forecast for other cities.
• Change temperature unit: The temperature unit is set according to the system 
language. Touch 
 > Temperature unit to change the unit.
• Enable weather sounds: Weather sounds are disabled by default. To enable them, 
touch 
, and then turn on the Weather tones switch. 
						

							Tools
163
Updating the weather
1 Open Weather.
2 Swipe left or right to find the city whose weather you want to update.
3 Swipe down from the top of the screen to update the weather manually.
 
You can also configure automatic weather updates. Touch  . Turn on the Select 
contacts
 switch, and then configure your The selected contacts will be deleted from 
all accounts. Continue anyway?
. Your phone will update weather data at the 
scheduled interval.
Chance of rain
Manage cities