User's Manual
20.6.3. SIM Card Lock
You can set up SIM1 or SIM2 card lock.
� Lock SIM1 or SIM2 Card: Set Lock SIM1 or SIM2 on or off.
� Change SIM1 or SIM2 PIN: Change SIM1 or SIM2 PIN.
20.6.4. Passwords:
You can set Visible passwords on or off.
20.6.5. Device Administration
Add or remove device administrators.
20.6.6. Credential Storage
You can set Credential Storage.
� Use Secure Credentials: Set Use Secure Credentials on or off, to allow applications to
access to secure certificates and other credentials.
� Install From SD Card: Install encrypted certificates from SD card.
� Set Password: Set a password for the credential storage.
� Clear Storage: Clear credential storage of all contents and reset its password.
20.7. Applications
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20.7.1. Unknown sources
The third party application can only be installed only if this function is initiated. Otherwise,
the third party application can’t be installed.
Note: When installing or using the third party applications, please take care! Only the user
is responsible to the data damage or data loss, etc. that are resulted from the installation
and use of the third party application.
20.7.2. Preferred install location
Change the preferred installation location for new applications.
20.7.3. Manage Applications
User can manage and remove the installed applications.
20.7.4. Running services
User can view and control currently running services.
20.7.5. Storage use
View storage user by applications.
20.7.6. Development
Set the options for application development.
� USB Debugging: Open or close USB debugging mode when USB is connected.
� USB settings: Set USB connection, Charge Only, USB tethering, USB storage,
Remenber my choice.
� Stay Awake: The screen will never sleep during charging if this function is “On”; If it is
“Off”, the screen can sleep during charging.
� Allow Mock Locations: The position can be simulated during debugging.
20.8. Accounts & Sync
You can perform adding accounts and Sync settings.
20.8.1. General Sync Settings
� Background Data: Set Background Data on or off, and it can sync & send & receive
data at any time.