Nokia X71 user guide

To save power:

1. Always charge the battery fully.
2. Mute unnecessary sounds, such as touch sounds. Tap Settings > Sound > Advanced, and under Other sounds and vibrations, select which sounds to keep.
3. Use wired headphones, rather than the loudspeaker.
4. Set the phone screen to switch off after a short time. Tap Settings > Display > Advanced > Sleep and select the time.
5. Tap Settings > Display > Brightness level. To adjust the brightness, drag the brightness level slider. Make sure that Adaptive brightness is disabled.
6. Stop apps from running in the background: swipe up the home key and swipe up the app you want to close.
7. Enable the Battery Manager: tap Settings > Battery > Battery Manager. When Battery Manager detects that apps are draining battery, you'll have the option to restrict these apps. Restricted apps may not work properly and notifications may be delayed.
8. Switch on the battery saver: tap Settings > Battery > Battery Saver, and switch to On.
9. Use network connections selectively: Switch Bluetooth on only when needed. Use a Wi-Fi connection to connect to the internet, rather than a mobile data connection. Stop your phone scanning for available wireless networks. Tap Settings > Network & Internet > Wi-Fi, and switch to Off. If you're listening to music or otherwise using your phone, but don't want to make or receive calls, switch the airplane mode on. Tap Settings > Network & Internet > Advanced > Airplane mode.

Airplane mode closes connections to the mobile network and switches your device’s wireless features off.