Browse via device topic
Help & support guides for your Huawei P9
My phone's battery life is short
If the phone uses too much power and the battery life is short, there may be several causes of the problem.
If the phone's screen brightness is set too high, the power consumption may increase.
Solution: Adjust screen brightness
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Display.
Press Brightness.
Press the indicator next to "Automatic brightness" to turn automatic brightness on or off.
Drag the indicator right or left to select the brightness level.
Press the Home key to return to the home screen.
Step 1 of -
Step 1 of -
When the screen lock is turned on, the phone's screen light is turned off. If the phone's screen lock is turned off or is set set to turn on after a long period of time, the power consumption may increase.
Solution: Turn screen lock on or off
Briefly press On/Off.
Briefly press On/Off.
Slide your finger upwards on the screen.
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Display.
Press Sleep.
Press the required setting.
Press the Home key to return to the home screen.
Step 1 of -
Step 1 of -
If live wallpapers are turned on, the power consumption may increase.
Solution: Turn off live wallpapers.
If Bluetooth is turned on on the phone, the power consumption may increase because the phone continuously searches for nearby Bluetooth devices.
Solution: Turn Bluetooth on or off
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Bluetooth.
Press the indicator to turn the function on or off.
If you turn on Bluetooth, your phone is visible to all Bluetooth devices.
Press the Home key to return to the home screen.
Step 1 of -
Step 1 of -
If mobile data is turned on, the power consumption may increase because various apps on the phone keep sending and receiving data.
Solution: Turn mobile data on or off
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press More.
Press Mobile network.
Press the indicator next to "Mobile data" to turn the function on or off.
Press the Home key to return to the home screen.
Step 1 of -
Step 1 of -
If vibration is turned on on the phone, the power consumption may increase.
Solution: Turn vibration on or off
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Sound.
Press the indicator next to "Vibrate when ringing" to turn the function on or off.
Press the Home key to return to the home screen.
Step 1 of -
Step 1 of -
If NFC is turned on, the power consumption may increase.
Solution: Turn NFC on or off
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press More.
Press the indicator next to "NFC" to turn the function on or off.
Press the Home key to return to the home screen.
Step 1 of -
Step 1 of -
If the battery is faulty, the battery life is reduced.
Solution: Go to the manufacturer's web page to see if it's possible to change the battery.
If you've used many apps on the phone, the power consumption may increase because the apps keep running in the background.
Solution: End running applications
Press the Application key.
Press the end icon.
Step 1 of -
Step 1 of -
If GPS is turned on on the phone, the power consumption may increase.
Solution: Turn GPS on or off
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Advanced settings.
Press Location services.
Press the indicator next to "Access to my location" to turn the function on or off.
If you turn on geotagging, your phone can find your position using GPS. If you turn off the function, you can't use any GPS functions on your phone.
If you select Use GPS, Wi-Fi and mobile networks, your phone can find your exact position using the GPS satellites, the mobile network and nearby Wi-Fi networks. Satellite-based GPS requires a clear view of the sky.
If you select Use Wi-Fi and mobile networks, your phone can find your approximate position using the mobile network and nearby Wi-Fi networks.
If you select USse GPS only, your phone can find your exact position using the GPS satellites but it may take longer as there is no access to supplementary information from the mobile network or nearby Wi-Fi networks.
Press the Home key to return to the home screen.
Step 1 of -
Step 1 of -
If Wi-Fi is turned on on the phone, the power consumption may increase because the phone continuously searches for available Wi-Fi networks.
Solution: Turn Wi-Fi on or off
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Wi-Fi.
Press the indicator next to "Wi-Fi" to turn the function on or off.
Press the Home key to return to the home screen.
Step 1 of -
Step 1 of -