Zte Z837VL User Manual page 23


Pinch
In some apps (such as Maps, Browser, and Gallery), you can
zoom in and out by placing two fingers on the screen at once
and pinching them together (to zoom out) or spreading them
apart (to zoom in).

Rotate the screen
For most screens, you can automatically change the screen
orientation from portrait to landscape by turning the phone
sideways.
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