Motorola LS420 - 4.2 Dual Digital Photo Frame User Manual page 6

You can set to display your frame in landscape or portrait
orientation.
Push the stand into the slot on the back of the frame and
slide it down in either directions as indicated below.
Landscape
IMPORTANT
To change the orientation of the stand, remove the stand
and re-attach it as above. Do not turn the stand when it is
attached.
6
Connecting the power cable plug
IMPORTANT
Portrait
Use only the power adapter supplied with your Digital Photo
Frame.
Getting started