When you are using the device to enter text, drag the Status Bar downward to open the Notifications Panel.
Tap Choose input method at the top of the notifications list, then choose an input method from the dialog box.
Google voice typing
LG Keyboard
If you selected the LG keyboard, type the text you want to enter.
Or, if you selected Google voice typing, say the text you want to enter.
Tap and drag.
Tap Choose input method.
Choose the input method you want to use.