Privacy: Reset to Factory Settings
1.Touch the Home Key > 
> Settings > Privacy > Factory data reset > Reset phone.
2.Enter six zeros on the screen and touch Erase everything.
WARNING! All your personal information and downloaded applications on your phone will be erased after the resetting.
Managing Applications
Touch the Home Key > 
> Settings > Applications.
∙Unknown sources: Tick the check box if you want to install applications from sources other than Google Play Store. The check box may be ticked by default.
WARNING! You may risk your phone and personal data by installing the applications from sources other than the Play Store.
∙Manage applications: Manage or remove installed applications.
∙Running services: Check currently running services and stop them if needed.
∙Storage use: View storage used by applications.
∙Battery use: See what has been using the battery.
∙Development: Set options for application development.
Installing an Application
You can install a free or paid application from the Play Store (the Home Key > 
> Play Store).
You can also install an application from sources other than the Play Store if you have
allowed the installation of it. To allow the installation, touch the Home Key > 
> Settings > Applications and tick the Unknown sources check box and accept the warning.
Make sure that you select an application developed for your phone and processor type before installing it.
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