1. Find "Power"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-41c9ec0d-203c-4814-9e4c-9227dfd66e30.png?width=214&height=380)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-41d5d634-a082-4a8f-9e61-2185080ad44a.png?width=214&height=380)
Press Power.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-17878c13-ee19-4fce-9496-fd87b67930c5.png?width=214&height=380)
2. Extend the battery life
Press the indicator next to the required setting to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-16f66970-d5f4-4f5b-bff5-70b2238f5992.png?width=214&height=380)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e1a52558-651f-4b4b-aec9-8cf65aee5ab1.png?width=214&height=380)