LG H420 Guide De L'utilisateur page 228

Removing the memory card
Before removing the memory card, first unmount it for safe removal.
1
Tap >
2
Remove the back cover and pull out the memory card.
WARNING
Do not remove the memory card while the device is transferring or accessing
information. Doing so can cause data to be lost or corrupted or damage to
the memory card or device. It is not responsible for losses that result from the
misuse of damaged memory cards, including the loss of data.
Locking and unlocking the device
Pressing the Power/Lock Button turns off the screen and puts the device into lock
mode. The device automatically gets locked if it is not used for a specified period. This
helps to prevent accidental taps and saves battery power.
To unlock the device, press the Power/Lock Button and swipe the screen in any
direction.
NOTE: Double-tapping on the screen also can wake up the screen instead of
the Power/Lock Button.
Changing the screen lock method
You can change the way that you lock the screen to prevent others accessing your
personal information.
1
Tap >
2
Select a desired screen lock from None, Swipe, Knock Code, Pattern, PIN and
Password.
22
> General tab > Storage > Unmount SD card.
>
> Display tab > Lock screen > Select screen lock.
>
Getting to know your phone