Maps, or other relevant services and applications.
In GPS satellite, switch on to use the location services that requires GPS assistance.
Security
Screen lock
By default, to unlock the screen of Pi3900, press the power/ lock button and then, drag the lock to an icon.
In Screen lock, you can set a pattern, pin, or password as the unlock security.To unlock the screen, such unlock security is required.
None | Switch off the lock. |
Slide | Slide to unlock the screen |
| (default). |
Pattern | Set a pattern as the unlock |
| security. |
PIN | Set a PIN that consists of |
| numbers. |
Password | Set a password that consists of a |
| combination of numbers, letters, |
| and symbols. |
Visible passwords
Your password consists of several characters.To make sure that you have entered the characters correctly, show the characters as you type the password. Switch Make passwords visible on or off as needed.
Tap the tick box.
»If the function is enabled, the tick box is selected.
Device administrators
Applications in corporate networks require the rights of device administrator, such as the email and calendar under your Microsoft Exchange account.
Before you uninstall such an application, disable the rights of device administrator.
In Device administrators, tap an application.
»The rights of device administrator are disabled.
»You cannot sync data for the application.
Unknown sources
On Pi3900, you can install applications that you download from 
, or from sources other than 
.
For the applications from sources other than 
, tap Unknown sources to allow installation on the Pi3900.
»If the function is enabled, the tick box is selected.
Language & input
Language
In Language, select the language for the onscreen instructions of Pi3900.
Personal dictionary
In Personal dictionary, add or remove words or phrases to/ from the user dictionary.You can customize the word suggestions that are displayed on the
To add a word or phrase,
Tap 
to add a word or phrase. To edit a word or phrase,
1 Tap on the word or phrase.
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