Set unlock PIN code
1.
Click setting application in main interface.
2.
Click
security
.
3.
Click
screen lock.
4.
Choose
PIN
in text setting area.
5.
Enter new PIN code(numbers) and click
continue
.
6.
Enter new PIN code again and click
confirm
.
Set unlock password
1.Click
setting application
in main interface.
2.Click safe.
3.Click screen locked.
4.Set password in text setting area.
5.Set new password(letters and numbers) and then click continue.
6.Enter the password again and the click
confirm.
Unknown source
1.In main interface, click setting.
2.Click safety.
3.Click unknown source, as Picture 4.13-2
Picture 4.13-2
Note: Manual installing APK files needs to turn on unknown source.
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