Using The Memory Card; Locking And Unlocking The Screen - LG L21G User Manual

Getting to know your phone

Using the memory card

Make sure to unmount the SD card in the Storage menu before removing it.
1
Remove the back cover.
2
Insert the memory card into the slot. Make sure the gold contact area is facing
downwards.

Locking and unlocking the screen

If you do not use the phone for a while, the screen will be automatically turned off
and locked. This helps to prevent accidental taps and saves battery power.
When you are not using your phone, press the Power/Lock Key to lock your phone.
And you can also lock the phone by double-tapping the Status Bar or an empty area
on the Home or Lock screen.
14