Settings
Settings
1.Press the Home Key > 
> Settings > Location & security > Set up SIM card lock.
2.Make sure you already check the Lock SIM card check box.
3.Tap Change SIM PIN.
4.Enter the old PIN and tap OK.
5.Enter your new PIN and tap OK.
6.Enter the new PIN again and tap OK.
Restoring a Locked SIM Card
Put all your confidential passwords in a safe place for future use. If you enter the wrong SIM PIN more times than allowed, your SIM card will be locked and you cannot access the mobile phone network. Contact your operator for a PIN Unlock Key (PUK) to restore the SIM card.
Setting Up Credential Storage
This lets you select applications to access secure certificates and other credentials.
Enabling Secure Credentials
1.Press the Home Key > 
> Settings > Location & security.
2.Tap Set password and create a password for the credential storage and tap OK.
TIP: You can also install encrypted certificates from your microSDHC card by tapping Install from SD card.
Deleting Secure Credentials
1.Press the Home Key > 
> Settings > Location & security.
2.Tap Clear storage > OK to clear credentials.
Managing Your Device Memory
Press the Home Key > 
> Settings > Storage. You can view the space information of the microSDHC card as well as the phone storage.
•Unmount/Mount SD card: You can unmount the microSDHC card to safely remove it, or mount the card.
•Erase SD card: Erase all data on the microSDHC card.
NOTE: Please unmount the microSDHC card before removing it.
Privacy: Reset to Factory Settings
1.Press the Home Key > 
> Settings > Privacy > Factory data reset > Reset phone.
2.Enter six zeros on the screen and tap Erase everything.
WARNING! All your personal information and downloaded applications on your phone will be erased after the resetting.
Managing Applications
Press the Home Key > 
> Settings > Applications.
•Unknown sources: Check the check box if you want to install applications from sources other than Google Play Store. The check box may be checked 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, press the Home Key > 
> Settings > Applications and check 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.
1.Copy the application file to the microSDHC card and install the card on your phone.
2.Press the Home Key > 
> File manager, and open the folder where the application file is.
3.Tap the file to start installation.
4.Read the installation instructions that come with the application and follow it to complete the setup.
Removing an Application
1.Press the Home Key > 
> Settings > Applications > Manage applications.
2.Select the application you want to delete.
3.Tap Uninstall > OK to confirm.
Moving an Application
You can move the applications downloaded or installed on your phone to the microSDHC card when the phone memory is full. You can also move applications to your phone if the microSDHC card is getting full.
NOTE: Not all applications can be moved to your phone or microSDHC card.
1.Press the Home Key > 
> Settings > Applications > Manage applications.
2.Tap the application you want to move on the Downloaded tab.
3.Tap Move to phone or Move to SD card.
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