follow these steps:
1
Make sure the device is plugged in then turn the BENQ Interactive Screen on from the lower right side of the device.
2
Tap on Source.
3
Choose InstaShare.
4
Check the internet connection on the upper left part of the screen.
5
Make sure that you have the same WIFI connection on your laptop.
6
Open InstaShare Application from your Desktop.
7
Choose the BENQ device name (Written on the screen).
8
Click Connect.
9
Click Start Casting.