YABER Pro V9 Manual De Instrucciones página 24

5.3 Digital Zoom
Step 1: Select the [ Screen Zoom ] option and press the OK button on
the remote controller or projector to enter the submenu.
Step 2: By pressing the button on the remote controller or projector,
you can reduce the height and width of projection size up to 50%.
6. System Update
Menu
Online Update
Local Update
Restore Factory
Online update
Local update
Restore user operation application
configuration and system setting
EN 20
Function