Sony XPERIA Z3v - Manual (Page 37)

To unlock a blocked SIM card using the PUK code
1 Enter the PUK code and tap .
2 Enter a new PIN code and tap .
3 Re-enter the new PIN code and tap .
If your device requires a PUK code, please contact Verizon Wireless Customer service for the
code.
Screen settings
To adjust the screen brightness
1 From your Home screen, tap .
2 Find and tap Settings > Display > Brightness.
3 Unmark the Adapt to lighting conditions checkbox if it is marked.
4 Drag the slider to adjust the brightness.
Lowering the brightness level increases battery performance.
To set the screen to vibrate on touch
1 From your Homescreen, tap .
2 Find and tap Settings > Sound.
3 Mark the Vibrate on touch checkbox. The screen now vibrates when you tap soft
keys and certain applications.
To adjust the idle time before the screen turns off
1 From your Home screen, tap .
2 Find and tap Settings > Display > Screen timeout.
3 Select an option.
To turn off the screen quickly, briefly press the power key .
Screen lock
There are several ways to lock the screen. The security level of each lock type is listed
below in order of weakest to strongest:
• Swipe
– no protection, but you have quick access to the Home screen
• Bluetooth Unlock
– unlocks your device by using paired Bluetooth devices
• Face Unlock
– unlocks your device when you look at it
• Unlock pattern
– draw a simple pattern with your finger to unlock your device
• Unlock PIN
– enter a numeric PIN of at least four digits to unlock your device
• Unlock password
– enter an alpha-numeric password to unlock your device
It is very important that you remember your screen unlock pattern, PIN or password. If you
forget this information, it may not be possible to restore important data such as contacts and
messages.
To change screen lock type
1 From your Homescreen, tap .
2 Find and tap Settings > Security > Screen lock.
3 Follow the instructions in your device and select another screen lock type.
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