Basics
Ultra power saving mode
Use this mode to extend the device’s battery power. In ultra power saving mode, the device performs the following:
•Displays colours on the screen as grey tones.
•Restricts the available apps to essential and selected apps only.
•Deactivates the mobile data connection when the screen turns off.
•Deactivates the
On the Home screen, tap Apps →Settings →Battery →Ultra power saving mode, and then tap the switch to activate it.
To deactivate ultra power saving mode, tap MORE →Disable Ultra power saving mode.
The usage time left shows the time remaining before the battery power runs out. Usage time left may vary depending on your device settings and operating
conditions.
Turning the device on and off
Press and hold the Power key for a few seconds to turn on the device.
When you turn on your device for the first time or after performing a data reset, follow the on- screen instructions to set up your device.
To turn off the device, press and hold the Power key, and then tap Power off.
Follow all posted warnings and directions from authorised personnel in areas where the use of wireless devices is restricted, such as aeroplanes and hospitals.
Restarting the device
If your device is frozen and unresponsive, press and hold the Power key and the Volume Down key simultaneously for more than 7 seconds to restart it.
Volume Down key 
Power key
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