Q. How do I cast using an Android phone?
Note: some Android phones do not support MiraCast.
Connecting a Samsung Phone
a. Put VTW73M in the Android MiraCast mode.
b. Go to setting (dragging the screen down) select SmartView
c. Select SSID
Connecting an Android Phone with "Cast Display" 
a.  Put VTW73M in the Android MiraCast mode.
b. Go to setting (dragging the screen down) select SmartView
c. Select "Cast Display" 
Connecting an Android Phone without "Cast Display" 
a. Download "Miracast - Wifi Display" from the app store.
b. Put VTW73M in the Android MiraCast mode.
b. Open "Miracast - Wifi Display" and select "Connect"



Q. How do I update firmware for VTW73M?
No need to update.