when you need to.
Lower the screen brightness.
Use Bluetooth tethering or USB tethering (when you have a
cable) instead of portable Wi-Fi hotspot to share your
phone's data service.
From the home screen, touch
close the apps you do not need but still run in the
background.
From the home screen, touch
and uncheck Vibrate on touch.
Freeing Up Memory Space
Use Task Manager to free up memory space and optimize
system speed.
1. From the home screen, touch
2. Touch the Tasks tab and touch
you do not need.
You can also touch Close All to stop all running
applications.
> Task Manager and
> Settings > Sound
> Task Manager.
next to the application
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