Lock and Unlock Your Screen
Your phone allows you to quickly turn the screen off when not in use and to turn it back on and unlock
it when you need it.
Turn the Screen Off When Not in Use
To quickly turn the screen off, press the Power/Lock key. Pressing the Power/Lock key again
or receiving an incoming call will turn on your phone screen and show the lock screen.
To save battery power, the phone automatically turns off the screen after a certain period of time
when you leave it idle. You will still be able to receive messages and calls while the phone's screen is
Note: For information on how to adjust the time before the screen turns off, see Display Settings.
Turn the Screen On and Unlock It
1. To turn the screen on, press the Power/Lock key.
The lock screen appears.
2. Swipe your finger across the screen to unlock it.
The screen is unlocked.
If you have set up a screen lock, you will be prompted to draw the pattern, enter the
password or PIN, or scan your fingerprint. See Screen Lock.
Update Your Phone
From time to time, updates may become available for your phone. You can download and apply
updates through the Settings > System updates menu.
Software Update Cautions
During update: The phone cannot be used until the software update is complete. It may take
time to update your phone's software.
Signal during update: Update your phone where signal reception is good, and do not change
location during the update process. Make sure the battery is adequately charged before
beginning an update. A weak signal or low battery during an update may cause the update to fail.
An update failure may disable the phone.
Other functions during update: Other phone functions cannot be used during a software
Getting Started Basic Operations